Reviewed by Dr. Sony Sherpa, MBBS, MD on Dec 22, 2025 Enter your last period or ovulation date to get a personalized calendar of your likely implantation window and best test day. Estimate your implantation window Ovulation date Last period date Ovulation date The first day of your last period Average cycle length (days) Calculate … Read more
Worried about a recent encounter? Our calculator helps you understand your personal pregnancy risk. Just enter the date to get a clear, science-based estimate in seconds. 💡 Powered by Peer-Reviewed Data. Learn about the science behind our calculations. Breastfeeding and no period yet? Check LAM breastfeeding birth control to see if you meet the rules. … 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. 💡 Powered by Peer-Reviewed Data. Learn about the science behind our calculations. How to Use This Calculator Getting your personalized fertility dashboard is easy. … 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. Other calculators 🧪 OPK to Ovulation 🌸 PCOS Ovulation 💊 Clomiphene/Letrozole Day 📊 Fertility by Age 🔄 Cycles to Get Pregnant 🔎 Conception calculator All calculators How to Use Our Ovulation Calculator … 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 Last Period DateConception DateIntercourse DateIVF … 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 (or an ovulation date) to see a research-based calendar of approximate chances. Calendar values are statistical estimates based on research averages and the information you enter. They cannot confirm pregnancy, … 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. Did we solve your problem today? 👍Yes 👎No ✕ Sorry to hear! What went wrong? Not relevant, didn’t meet my needs Hard to use / Confusing interface … Read more