diff --git a/app.js b/app.js
index bb31b22..fae73d6 100644
--- a/app.js
+++ b/app.js
@@ -5,6 +5,7 @@ import Calendar from './components/calendar'
 import CycleDay from './components/cycle-day'
 import Chart from './components/chart/chart'
 import Settings from './components/settings'
+import Stats from './components/stats'
 
 // this is until react native fixes this bugg, see
 // https://github.com/facebook/react-native/issues/18868#issuecomment-382671739
@@ -16,5 +17,6 @@ export default createStackNavigator({
   calendar: { screen: Calendar },
   cycleDay: { screen: CycleDay },
   chart: { screen: Chart },
-  settings: { screen: Settings }
+  settings: { screen: Settings },
+  stats: { screen: Stats}
 })
diff --git a/components/calendar.js b/components/calendar.js
index 67e5299..b447bf2 100644
--- a/components/calendar.js
+++ b/components/calendar.js
@@ -1,6 +1,6 @@
 import React, { Component } from 'react'
 import { View } from 'react-native'
-import { Calendar } from 'react-native-calendars'
+import { CalendarList } from 'react-native-calendars'
 import * as styles from '../styles'
 import { getOrCreateCycleDay, bleedingDaysSortedByDate } from '../db'
 
@@ -35,7 +35,7 @@ export default class CalendarView extends Component {
   render() {
     return (
       <View style={styles.container}>
-        <Calendar
+        <CalendarList
           onDayPress={ this.passDateToDayView.bind(this) }
           markedDates = { this.state.bleedingDaysInCalFormat }
           markingType = {'period'}
diff --git a/components/home.js b/components/home.js
index 623821d..315ea50 100644
--- a/components/home.js
+++ b/components/home.js
@@ -87,6 +87,12 @@ export default class Home extends Component {
               title="delete everything">
             </Button>
           </View>
+          <View style={styles.homeButton}>
+            <Button
+              onPress={() => navigate('stats')}
+              title="Go to stats">
+            </Button>
+          </View>
         </View>
       </ScrollView>
     )
diff --git a/components/stats.js b/components/stats.js
new file mode 100644
index 0000000..4021fde
--- /dev/null
+++ b/components/stats.js
@@ -0,0 +1,51 @@
+import React, { Component } from 'react'
+import {
+  Text,
+  View,
+  ScrollView
+} from 'react-native'
+import { LocalDate, ChronoUnit } from 'js-joda'
+import styles from '../styles/index'
+import cycleModule from '../lib/cycle'
+import getCycleInfo from '../lib/cycle-length'
+
+export default class Stats extends Component {
+  render() {
+    const allMensesStarts = cycleModule().getAllMensesStarts()
+    const statsText = determineStatsText(allMensesStarts)
+    return (
+      <ScrollView>
+        <View>
+          <Text style={styles.stats}>{statsText}</Text>
+        </View>
+      </ScrollView>
+    )
+  }
+}
+
+function getCycleLength(cycleStartDates) {
+  const cycleLengths = []
+  for (let i = 0; i < cycleStartDates.length - 1; i++) {
+    const nextCycleStart = LocalDate.parse(cycleStartDates[i])
+    const cycleStart = LocalDate.parse(cycleStartDates[i + 1])
+    cycleLengths.push(cycleStart.until(nextCycleStart, ChronoUnit.DAYS))
+  }
+  return cycleLengths
+}
+
+function determineStatsText(allMensesStarts) {
+  const emptyStats = 'At least one completed cycle is needed to present you with stats here.'
+  if (allMensesStarts.length < 2) {
+    return emptyStats
+  } else {
+    const cycleLengths = getCycleLength(allMensesStarts)
+    const numberOfCycles = cycleLengths.length
+    if (numberOfCycles === 1) {
+      return `You have documented one cycle of ${cycleLengths[0]} days.`
+    }
+    const cycleInfo = getCycleInfo(cycleLengths)
+    const statsText = `Stats are based on ${numberOfCycles} completed cycles.\n\n\
+    Average cycle length: ${cycleInfo.mean} days\n\nShortest cycle: ${cycleInfo.minimum} days\nLongest cycle: ${cycleInfo.maximum} days\nMedian length (meaning 50% of cycles are of this length or shorter): ${cycleInfo.median} days\nStandard deviation: ${cycleInfo.stdDeviation}`
+    return statsText
+  }
+}
\ No newline at end of file
diff --git a/lib/period-length.js b/lib/cycle-length.js
similarity index 67%
rename from lib/period-length.js
rename to lib/cycle-length.js
index e62f076..6f8feb5 100644
--- a/lib/period-length.js
+++ b/lib/cycle-length.js
@@ -1,38 +1,38 @@
 import assert from 'assert'
 
-export default function getPeriodLengthStats(cycleLengths) {
+export default function getCycleLengthStats(cycleLengths) {
   throwIfArgsAreNotInRequiredFormat(cycleLengths)
-  const periodLengthStats = {}
+  const cycleLengthStats = {}
   const sortedCycleLengths = cycleLengths.sort((a, b) => {
     return a - b
   })
-  periodLengthStats.minimum = sortedCycleLengths[0]
-  periodLengthStats.maximum = sortedCycleLengths[cycleLengths.length - 1]
-  periodLengthStats.mean = Math.round(
+  cycleLengthStats.minimum = sortedCycleLengths[0]
+  cycleLengthStats.maximum = sortedCycleLengths[cycleLengths.length - 1]
+  cycleLengthStats.mean = Math.round(
     cycleLengths.reduce(getSum) / cycleLengths.length * 100
   ) / 100
   // median
   if (cycleLengths.length % 2 == 1) {
-    periodLengthStats.median = sortedCycleLengths[
+    cycleLengthStats.median = sortedCycleLengths[
       (cycleLengths.length + 1) / 2 - 1
     ]
   } else {
     const middle = cycleLengths.length / 2
-    periodLengthStats.median = (sortedCycleLengths[middle - 1] +
+    cycleLengthStats.median = (sortedCycleLengths[middle - 1] +
        sortedCycleLengths[middle]) / 2
   }
   // corrected standard deviation (based on unbiased sample variance)
   if (cycleLengths.length > 1) {
     const sumOfSquares = cycleLengths.map(cycleLength => {
-      return Math.pow(cycleLength - periodLengthStats.mean, 2)
+      return Math.pow(cycleLength - cycleLengthStats.mean, 2)
     }).reduce(getSum)
-    periodLengthStats.stdDeviation = Math.round(
+    cycleLengthStats.stdDeviation = Math.round(
       Math.sqrt(sumOfSquares / (cycleLengths.length - 1 )) * 100
     ) / 100
   } else {
-    periodLengthStats.stdDeviation = null
+    cycleLengthStats.stdDeviation = null
   }
-  return periodLengthStats
+  return cycleLengthStats
 }
 
 function getSum(total, num) {
diff --git a/lib/cycle.js b/lib/cycle.js
index f350ff8..23bc3cd 100644
--- a/lib/cycle.js
+++ b/lib/cycle.js
@@ -130,10 +130,24 @@ export default function config(opts) {
     }
   }
 
+  function getAllMensesStarts(day, collectedDates) {
+    day = day || LocalDate.now().toString()
+    collectedDates = collectedDates || []
+    const lastStart = getLastMensesStart(day)
+    if (!lastStart) {
+      return collectedDates
+    } else {
+      const newDay = LocalDate.parse(lastStart.date).minusDays(1).toString()
+      collectedDates.push(lastStart.date)
+      return getAllMensesStarts(newDay, collectedDates)
+    }
+  }
+
   return {
     getCycleDayNumber,
     getCycleForDay,
     getPreviousCycle,
-    getCyclesBefore
+    getCyclesBefore,
+    getAllMensesStarts
   }
 }
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index b0cdbd3..6c10f49 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -3479,8 +3479,8 @@
       "integrity": "sha512-z8H8/diyk76B7q5wg+Ud0+CqzcAF3mBBI/bA5ne5zrRUUIvNkJY//D3BqyH571KuAC4Nr7Rw7CjWX4r0y9DvNg==",
       "optional": true,
       "requires": {
-        "nan": "^2.9.2",
-        "node-pre-gyp": "^0.10.0"
+        "nan": "2.10.0",
+        "node-pre-gyp": "0.10.0"
       },
       "dependencies": {
         "abbrev": {
@@ -3502,19 +3502,21 @@
           "bundled": true,
           "optional": true,
           "requires": {
-            "delegates": "^1.0.0",
-            "readable-stream": "^2.0.6"
+            "delegates": "1.0.0",
+            "readable-stream": "2.3.6"
           }
         },
         "balanced-match": {
           "version": "1.0.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "brace-expansion": {
           "version": "1.1.11",
           "bundled": true,
+          "optional": true,
           "requires": {
-            "balanced-match": "^1.0.0",
+            "balanced-match": "1.0.0",
             "concat-map": "0.0.1"
           }
         },
@@ -3525,15 +3527,18 @@
         },
         "code-point-at": {
           "version": "1.1.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "concat-map": {
           "version": "0.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "console-control-strings": {
           "version": "1.1.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "core-util-is": {
           "version": "1.0.2",
@@ -3568,7 +3573,7 @@
           "bundled": true,
           "optional": true,
           "requires": {
-            "minipass": "^2.2.1"
+            "minipass": "2.2.4"
           }
         },
         "fs.realpath": {
@@ -3581,14 +3586,14 @@
           "bundled": true,
           "optional": true,
           "requires": {
-            "aproba": "^1.0.3",
-            "console-control-strings": "^1.0.0",
-            "has-unicode": "^2.0.0",
-            "object-assign": "^4.1.0",
-            "signal-exit": "^3.0.0",
-            "string-width": "^1.0.1",
-            "strip-ansi": "^3.0.1",
-            "wide-align": "^1.1.0"
+            "aproba": "1.2.0",
+            "console-control-strings": "1.1.0",
+            "has-unicode": "2.0.1",
+            "object-assign": "4.1.1",
+            "signal-exit": "3.0.2",
+            "string-width": "1.0.2",
+            "strip-ansi": "3.0.1",
+            "wide-align": "1.1.2"
           }
         },
         "glob": {
@@ -3596,12 +3601,12 @@
           "bundled": true,
           "optional": true,
           "requires": {
-            "fs.realpath": "^1.0.0",
-            "inflight": "^1.0.4",
-            "inherits": "2",
-            "minimatch": "^3.0.4",
-            "once": "^1.3.0",
-            "path-is-absolute": "^1.0.0"
+            "fs.realpath": "1.0.0",
+            "inflight": "1.0.6",
+            "inherits": "2.0.3",
+            "minimatch": "3.0.4",
+            "once": "1.4.0",
+            "path-is-absolute": "1.0.1"
           }
         },
         "has-unicode": {
@@ -3614,7 +3619,7 @@
           "bundled": true,
           "optional": true,
           "requires": {
-            "safer-buffer": "^2.1.0"
+            "safer-buffer": "2.1.2"
           }
         },
         "ignore-walk": {
@@ -3622,7 +3627,7 @@
           "bundled": true,
           "optional": true,
           "requires": {
-            "minimatch": "^3.0.4"
+            "minimatch": "3.0.4"
           }
         },
         "inflight": {
@@ -3630,13 +3635,14 @@
           "bundled": true,
           "optional": true,
           "requires": {
-            "once": "^1.3.0",
-            "wrappy": "1"
+            "once": "1.4.0",
+            "wrappy": "1.0.2"
           }
         },
         "inherits": {
           "version": "2.0.3",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "ini": {
           "version": "1.3.5",
@@ -3646,8 +3652,9 @@
         "is-fullwidth-code-point": {
           "version": "1.0.0",
           "bundled": true,
+          "optional": true,
           "requires": {
-            "number-is-nan": "^1.0.0"
+            "number-is-nan": "1.0.1"
           }
         },
         "isarray": {
@@ -3658,20 +3665,23 @@
         "minimatch": {
           "version": "3.0.4",
           "bundled": true,
+          "optional": true,
           "requires": {
-            "brace-expansion": "^1.1.7"
+            "brace-expansion": "1.1.11"
           }
         },
         "minimist": {
           "version": "0.0.8",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "minipass": {
           "version": "2.2.4",
           "bundled": true,
+          "optional": true,
           "requires": {
-            "safe-buffer": "^5.1.1",
-            "yallist": "^3.0.0"
+            "safe-buffer": "5.1.1",
+            "yallist": "3.0.2"
           }
         },
         "minizlib": {
@@ -3679,12 +3689,13 @@
           "bundled": true,
           "optional": true,
           "requires": {
-            "minipass": "^2.2.1"
+            "minipass": "2.2.4"
           }
         },
         "mkdirp": {
           "version": "0.5.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -3699,9 +3710,9 @@
           "bundled": true,
           "optional": true,
           "requires": {
-            "debug": "^2.1.2",
-            "iconv-lite": "^0.4.4",
-            "sax": "^1.2.4"
+            "debug": "2.6.9",
+            "iconv-lite": "0.4.21",
+            "sax": "1.2.4"
           }
         },
         "node-pre-gyp": {
@@ -3709,16 +3720,16 @@
           "bundled": true,
           "optional": true,
           "requires": {
-            "detect-libc": "^1.0.2",
-            "mkdirp": "^0.5.1",
-            "needle": "^2.2.0",
-            "nopt": "^4.0.1",
-            "npm-packlist": "^1.1.6",
-            "npmlog": "^4.0.2",
-            "rc": "^1.1.7",
-            "rimraf": "^2.6.1",
-            "semver": "^5.3.0",
-            "tar": "^4"
+            "detect-libc": "1.0.3",
+            "mkdirp": "0.5.1",
+            "needle": "2.2.0",
+            "nopt": "4.0.1",
+            "npm-packlist": "1.1.10",
+            "npmlog": "4.1.2",
+            "rc": "1.2.7",
+            "rimraf": "2.6.2",
+            "semver": "5.5.0",
+            "tar": "4.4.1"
           }
         },
         "nopt": {
@@ -3726,8 +3737,8 @@
           "bundled": true,
           "optional": true,
           "requires": {
-            "abbrev": "1",
-            "osenv": "^0.1.4"
+            "abbrev": "1.1.1",
+            "osenv": "0.1.5"
           }
         },
         "npm-bundled": {
@@ -3740,8 +3751,8 @@
           "bundled": true,
           "optional": true,
           "requires": {
-            "ignore-walk": "^3.0.1",
-            "npm-bundled": "^1.0.1"
+            "ignore-walk": "3.0.1",
+            "npm-bundled": "1.0.3"
           }
         },
         "npmlog": {
@@ -3749,15 +3760,16 @@
           "bundled": true,
           "optional": true,
           "requires": {
-            "are-we-there-yet": "~1.1.2",
-            "console-control-strings": "~1.1.0",
-            "gauge": "~2.7.3",
-            "set-blocking": "~2.0.0"
+            "are-we-there-yet": "1.1.4",
+            "console-control-strings": "1.1.0",
+            "gauge": "2.7.4",
+            "set-blocking": "2.0.0"
           }
         },
         "number-is-nan": {
           "version": "1.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "object-assign": {
           "version": "4.1.1",
@@ -3767,8 +3779,9 @@
         "once": {
           "version": "1.4.0",
           "bundled": true,
+          "optional": true,
           "requires": {
-            "wrappy": "1"
+            "wrappy": "1.0.2"
           }
         },
         "os-homedir": {
@@ -3786,8 +3799,8 @@
           "bundled": true,
           "optional": true,
           "requires": {
-            "os-homedir": "^1.0.0",
-            "os-tmpdir": "^1.0.0"
+            "os-homedir": "1.0.2",
+            "os-tmpdir": "1.0.2"
           }
         },
         "path-is-absolute": {
@@ -3805,10 +3818,10 @@
           "bundled": true,
           "optional": true,
           "requires": {
-            "deep-extend": "^0.5.1",
-            "ini": "~1.3.0",
-            "minimist": "^1.2.0",
-            "strip-json-comments": "~2.0.1"
+            "deep-extend": "0.5.1",
+            "ini": "1.3.5",
+            "minimist": "1.2.0",
+            "strip-json-comments": "2.0.1"
           },
           "dependencies": {
             "minimist": {
@@ -3823,13 +3836,13 @@
           "bundled": true,
           "optional": true,
           "requires": {
-            "core-util-is": "~1.0.0",
-            "inherits": "~2.0.3",
-            "isarray": "~1.0.0",
-            "process-nextick-args": "~2.0.0",
-            "safe-buffer": "~5.1.1",
-            "string_decoder": "~1.1.1",
-            "util-deprecate": "~1.0.1"
+            "core-util-is": "1.0.2",
+            "inherits": "2.0.3",
+            "isarray": "1.0.0",
+            "process-nextick-args": "2.0.0",
+            "safe-buffer": "5.1.1",
+            "string_decoder": "1.1.1",
+            "util-deprecate": "1.0.2"
           }
         },
         "rimraf": {
@@ -3837,7 +3850,7 @@
           "bundled": true,
           "optional": true,
           "requires": {
-            "glob": "^7.0.5"
+            "glob": "7.1.2"
           }
         },
         "safe-buffer": {
@@ -3872,10 +3885,11 @@
         "string-width": {
           "version": "1.0.2",
           "bundled": true,
+          "optional": true,
           "requires": {
-            "code-point-at": "^1.0.0",
-            "is-fullwidth-code-point": "^1.0.0",
-            "strip-ansi": "^3.0.0"
+            "code-point-at": "1.1.0",
+            "is-fullwidth-code-point": "1.0.0",
+            "strip-ansi": "3.0.1"
           }
         },
         "string_decoder": {
@@ -3883,14 +3897,14 @@
           "bundled": true,
           "optional": true,
           "requires": {
-            "safe-buffer": "~5.1.0"
+            "safe-buffer": "5.1.1"
           }
         },
         "strip-ansi": {
           "version": "3.0.1",
           "bundled": true,
           "requires": {
-            "ansi-regex": "^2.0.0"
+            "ansi-regex": "2.1.1"
           }
         },
         "strip-json-comments": {
@@ -3903,13 +3917,13 @@
           "bundled": true,
           "optional": true,
           "requires": {
-            "chownr": "^1.0.1",
-            "fs-minipass": "^1.2.5",
-            "minipass": "^2.2.4",
-            "minizlib": "^1.1.0",
-            "mkdirp": "^0.5.0",
-            "safe-buffer": "^5.1.1",
-            "yallist": "^3.0.2"
+            "chownr": "1.0.1",
+            "fs-minipass": "1.2.5",
+            "minipass": "2.2.4",
+            "minizlib": "1.1.0",
+            "mkdirp": "0.5.1",
+            "safe-buffer": "5.1.1",
+            "yallist": "3.0.2"
           }
         },
         "util-deprecate": {
@@ -3922,7 +3936,7 @@
           "bundled": true,
           "optional": true,
           "requires": {
-            "string-width": "^1.0.2"
+            "string-width": "1.0.2"
           }
         },
         "wrappy": {
diff --git a/styles/index.js b/styles/index.js
index 1b09eb4..fde1700 100644
--- a/styles/index.js
+++ b/styles/index.js
@@ -82,5 +82,11 @@ export default StyleSheet.create({
     marginTop: 15,
     marginLeft: 'auto',
     marginRight: 'auto'
+  },
+  stats: {
+    fontSize: 18,
+    margin: 30,
+    textAlign: 'left',
+    textAlignVertical: 'center'
   }
 })
\ No newline at end of file
diff --git a/test/period-length.spec.js b/test/cycle-length.spec.js
similarity index 65%
rename from test/period-length.spec.js
rename to test/cycle-length.spec.js
index f10fb18..043cf96 100644
--- a/test/period-length.spec.js
+++ b/test/cycle-length.spec.js
@@ -1,14 +1,14 @@
 import chai from 'chai'
 import { AssertionError } from 'assert'
 
-import periodInfo from '../lib/period-length'
+import cycleInfo from '../lib/cycle-length'
 
 const expect = chai.expect
 
-describe('getPeriodLengthStats', () => {
+describe('getCycleLengthStats', () => {
   it('works for a simple odd-numbered array', () => {
-    const periodLengths = [99, 5, 1, 2, 100]
-    const result = periodInfo(periodLengths)
+    const cycleLengths = [99, 5, 1, 2, 100]
+    const result = cycleInfo(cycleLengths)
     const expectedResult = {
       minimum: 1,
       maximum: 100,
@@ -20,8 +20,8 @@ describe('getPeriodLengthStats', () => {
   })
 
   it('works for a simple even-numbered array', () => {
-    const periodLengths = [4, 1, 15, 2, 20, 5]
-    const result = periodInfo(periodLengths)
+    const cycleLengths = [4, 1, 15, 2, 20, 5]
+    const result = cycleInfo(cycleLengths)
     const expectedResult = {
       minimum: 1,
       maximum: 20,
@@ -32,8 +32,8 @@ describe('getPeriodLengthStats', () => {
     expect(result).to.eql(expectedResult)
   })
   it('works for an one-element array', () => {
-    const periodLengths = [42]
-    const result = periodInfo(periodLengths)
+    const cycleLengths = [42]
+    const result = cycleInfo(cycleLengths)
     const expectedResult = {
       minimum: 42,
       maximum: 42,
@@ -45,20 +45,20 @@ describe('getPeriodLengthStats', () => {
   })
   describe('when args are wrong', () => {
     it('throws when arg object is an empty array', () => {
-      const periodLengths = []
-      expect(() => periodInfo(periodLengths).to.throw(AssertionError))
+      const cycleLengths = []
+      expect(() => cycleInfo(cycleLengths).to.throw(AssertionError))
     })
     it('throws when arg object is not in right format', () => {
       const wrongObject = { hello: 'world' }
-      expect(() => periodInfo(wrongObject).to.throw(AssertionError))
+      expect(() => cycleInfo(wrongObject).to.throw(AssertionError))
     })
     it('throws when arg array contains a string', () => {
       const wrongElement = [4, 1, 15, '2', 20, 5]
-      expect(() => periodInfo(wrongElement).to.throw(AssertionError))
+      expect(() => cycleInfo(wrongElement).to.throw(AssertionError))
     })
     it('throws when arg array contains a NaN', () => {
       const wrongElement = [4, 1, 15, NaN, 20, 5]
-      expect(() => periodInfo(wrongElement).to.throw(AssertionError))
+      expect(() => cycleInfo(wrongElement).to.throw(AssertionError))
     })
   })
 })
\ No newline at end of file