Top Free Fertility Calendars Online

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A fertility calendar can help you track ovulation symptoms, along with your menstrual cycles and conception sex attempts. Fertility calendars sometimes, but not always, include tracking your body basal temperature. While you can track your BBT on paper, using a computer program or an online software program can make things much easier. These sites offer free fertility calendars and charting so you can begin to see trends in your fertility and share information with your doctor. has a VIP version as well as a free version, but the free version includes more than enough functionality to chart with ease. includes tons of fertility charting education, answers to common questions, an active support forum, and a huge gallery of fertility charts. FertilityFriend's app syncs with your online chart. The design of the app and site is not fresh or fancy, but data and function are what really matter here. offers free fertility calendars that allow you to track as little or as much information as you like. You can keep a detailed fertility chart, including BBT readings, or you can just track your period days. Using the information you provide, the fertility calendar will let you know if your period is late, if ovulation may be approaching, and other important fertility information. allows you to track PMS symptoms, your weight, personal notes, doctor appointments, and more. You can set up a variety of email reminders, including those that let you know if your period is late, your ovulation day may be approaching, or that it’s time for a medical check-up. offers free downloadable charts or online fertility charting through The fertility calendars on the site have been endorsed by Toni Weschler, author of "Taking Charge of Your Fertility," or TCOYF for short. OvaGraph also has a free mobile app (both iOS and Android) with unlimited storage of cycle data. offers a free fertility calendar, where you can track your BBT, periods, and other ovulation symptoms. Both free and paid versions are available, along with a mobile app. The paid version includes color shading on the chart, which makes it easier to see when your fertile and non-fertile days are, along with other premium features.

App-Only Charting

If you want to use a mobile app and don't care about having an online home for your charts and data, consider apps such as:

  • Clue: Use the free app, or subscribe to Clue Plus to support the company and help fund research, and get a few extra perks.
  • Glow: This ovulation and fertility app also incorporates a male fertility tracker.
  • Ovia: With this fertility app, you can track your period and get ovulation predictions based on your cycle.
  • Kindara: Use this fertility app on its own or pair with Wink, a Bluetooth connected BBT thermometer. The app tracks BBT, cervical fluid, menstruation, and sex, plus any custom info you'd like to log.
  • Flo: This app takes you from period tracking to an ovulation calendar to pregnancy mode (but its charting functions are fairly basic).

By Rachel Gurevich, RN
Rachel Gurevich is a fertility advocate, author, and recipient of The Hope Award for Achievement, from Resolve: The National Infertility Association. She is a professional member of the Association of Health Care Journalists and has been writing about women’s health since 2001. Rachel uses her own experiences with infertility to write compassionate, practical, and supportive articles.