Ovulation Calculator & Calendar - Determine Your Most Fertile Days

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Health & PregnancyOvulation CalculatorYour menstrual cycle can vary from month to month, and not everyone's is the same length. Use this calculator to see when you may be ovulating to find your most fertile days. Typically, you can get pregnant during about 6 days each month. That's called your fertility window.Select the first day of your last periodSunMonTueWedThuFriSat123456789101112131415161718192021222324252627282930Note: This tool should not be used alone to prevent pregnancy. Results are estimates as ovulation cycles can vary.How Long Is Your Average Cycle?

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Don’t know? Calculate your Cycle Length Types of Content I’m Interested in: optional Planning a PregnancyTracking My CycleBirth Control Calculate Note: This tool should not be used alone to prevent pregnancy. Results are estimates as ovulation cycles can vary.

Signs of Ovulation

• Rise in basal body temperature, typically 1/2 to 1 degree, measured by a thermometer
• Higher levels of luteinizing hormone (LH), measured on a home ovulation kit
• Cervical mucus, or vaginal discharge, may appear clearer, thinner, and stretchy, like raw egg whites
• Breast tenderness
• Bloating
• Spotting
• Slight pain or cramping in your side

Pregnancy Tips: How to Increase Your Chances

1. Know when you ovulate

   Ovulation is thought to happen about 14 days before your next period begins, but it can vary from month to month – even if you have regular cycles. To get a better sense of when you’re ovulating, chart your basal body temperature and your cervical mucus. Use an over-the-counter ovulation predictor kit, ovulation tracking bracelet, or lab tests to check for hormonal changes before ovulation.

2. Have sex often

   Your odds of getting pregnant are best when you have sex 1 to 2 days before you ovulate. But cycle length can vary. You may have an irregular cycle or miscalculate your ovulation date. Sperm can survive in your body for up to 5 days. To hedge your bets, have sex often starting 3 days before ovulation and continuing for 2 to 3 days after you think you've ovulated.

3. Lie low after sex?

   It was long believed that you should stay in bed for at least 15 minutes after sex to give sperm a chance to reach the egg. But recent studies found no evidence to back up this claim.

4. Maintain a healthy weight

   Studies show that weighing too little – or too much – may disrupt ovulation and cycle length and affect the production of key hormones. Doctors consider a healthy body mass index to be between 18.5 and 24.9. Staying fit with moderate exercise is fine, but this isn’t the time to train for a marathon: Strenuous exercise can mess with your menstrual cycle, making it more difficult for you to conceive.

5. De-stress

   Research shows that stress may make it harder to get pregnant. Yoga, meditation, and long walks can help lower stress and improve your overall well-being.

6. Manage medical conditions

   If you have a medical condition such as diabetes, asthma, or epilepsy, be sure it’s under control. Speak with your doctor about any prescription or over-the-counter medications you may be taking, since they might affect your chances of getting pregnant.

7. Your partner's health matters, too

   More than 33% of fertility issues involve only the sperm-producing partner, and another 33% involve both partners. Either partner can improve their reproductive health by quitting smoking, limiting alcohol, eating healthy, and lowering stress.

8. Trying for a boy or a girl?

   Several theories claim you can influence the gender of your baby by having sex at a certain time of the month or in a specific position. But there’s no surefire, natural way to choose the sex of your baby. Your odds are 50-50 unless you use a sperm-sorting technique, followed by artificial insemination.

Learn More

• Getting Started on Getting PregnantReady to start trying to conceive? Get answers to your questions about how long it could take, how often to have sex, and more.
• What Not to Do If You Want to Get PregnantDon't wait until you miss your period to start getting healthy. Here are 11 things NOT to do if you want to get pregnant.
• The Truth About Sex Positions and Getting PregnantNo one sex position has been proven to improve your odds of conception. But some may be better than others.
• Your Pre-Pregnancy ChecklistHow can you set the stage for a healthy pregnancy? Here’s a to-do list to help you get your body ready for a baby.

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