Reviewed by Dr. Grace Ramosena, MBChB on Jan 25, 2026 Enter LMP, due date, or ultrasound to estimate your conception date and likely intercourse window. We also show a timeline of key pregnancy dates. Last Period Due Date Ultrasound First day of last period Average cycle length (days) Estimated Due Date Date of Ultrasound Gestational … Read more
Enter your DPO or LMP dates, choose your test brand, and see the estimated percent accuracy for detecting pregnancy on each day. Pregnancy Test Accuracy Calculator Estimate your test’s ability to detect pregnancy based on when you test and the test type. Enter DPO Use LMP + Cycle Days Past Ovulation (DPO) Select DPO…7 DPO8 … Read more
Enter your due date or an early-ultrasound date. We’ll estimate your conception date, most-likely intercourse day, a fertile window, and your LMP. Reverse Due Date Calculator Due Date Ultrasound Estimated due date (EDD) Pregnancy length (from LMP) weeksdays If unsure, leave at 40 weeks. Ultrasound date Gestational age at ultrasound Weeks Days (0–6) Pregnancy length … Read more
Reviewed by Dr. Grace Ramosena, MBChB on Jan 25, 2026 Estimate miscarriage risk by week and day. For the most accurate assessment, please include your maternal age, heartbeat status, prior history, and BMI. Maternal Age Week of Pregnancy Day (0-6) Medical History & Ultrasound (Refines Accuracy) Have you had an ultrasound? No / Not yet … Read more
Find your estimated pregnancy chance after one encounter where no contraception was used. This tool weighs cycle day (plus optional age/BMI) and any emergency contraception to give a clear percent risk, 1-in-N view, and your first accurate test day Date of Intercourse Start Date of Your Last Period Average Cycle Length (Days) Did you use … Read more
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