This calculator gives an estimate based on timing, protection, and cycle details. It cannot confirm pregnancy; use a pregnancy test if your period is late or symptoms continue. Peer-Reviewed Science Updated Dec 2025 Did we solve your problem today? 👍Yes 👎No ✕ Sorry to hear! What went wrong? Not relevant, didn’t meet my needs Hard … Read more
Welcome to the most comprehensive fertility and pregnancy calculator online. Whether you are trying to conceive or trying to avoid pregnancy, this all-in-one fertility dashboard provides the personalized insights you need. Peer-Reviewed Science Updated Dec 2025 Did we solve your problem today? 👍Yes 👎No ✕ Sorry to hear! What went wrong? Not relevant, didn’t meet … Read more
Enter your last period and cycle length to see your fertile window and likely ovulation day on a simple calendar—plus daily pregnancy odds. Peer-Reviewed Science Updated Dec 2025 See Methodology Did we solve your problem today? 👍Yes 👎No ✕ Sorry to hear! What went wrong? Not relevant, didn’t meet my needs Hard to use / … Read more
Use this pregnancy due date calculator to work out your baby’s estimated due date (EDD), how many weeks pregnant you are, and which trimester you’re in. Enter the date of your last period, conception, intercourse, IVF transfer, or an early ultrasound. Calculate based on Last Period Conception Intercourse IVF Ultrasound Calculation method Last Period DateConception … Read more
See your estimated pregnancy odds for each day in a typical cycle. Enter the start date of your last period and your average cycle length to see a research-based calendar of approximate chances. If you want to calculate how many weeks pregnant you are, use the Gestational Age Calculator. Calendar values are statistical estimates based … Read more
Enter the date and details of one encounter to see a research-based estimate of your pregnancy chance for that single event. The result is a statistical model, not a diagnosis. This calculator shows a statistical estimate based on research averages and the details you enter. It cannot confirm pregnancy, rule out pregnancy, or replace advice … Read more
When you are choosing birth control, it is easy to focus on the method itself, but how you use it also matters. The gap between perfect use (no mistakes) and typical use (real life) can change your pregnancy risk in a meaningful way. What “perfect” vs “typical” use means Perfect use Taking the pill at … Read more
Some contraceptive pairs can reduce protection or add risk. If you want to use two methods at the same time, it is usually safest to choose options that complement each other. The combinations below are ones that guidelines generally advise against, together with alternatives you can discuss with a clinician. Pairs you usually should not … Read more
Curious how your lifestyle and health affect your odds? This advanced calculator lets you add details like age, BMI, and more for a more detailed pregnancy chance estimate. Intercourse times ? Count any events you want to estimate for, regardless of time period. Female age ? Used to estimate baseline fertility and age-related risks. If … Read more
Related calculators Condom pregnancy risk Estimate pregnancy risk for a condom-use scenario.→ Pregnancy chance on the pill Estimate pregnancy risk while using oral contraceptive pills.→ Fertility after implant removal For the implant-and-condom example, estimate when ovulation and periods may return after implant removal.→ Birth control switch gap Calculate backup days when starting or switching birth … Read more