Estimate your IUI pregnancy chance using age, trigger use, semen quality (normal or low), and which attempt you’re on. See per-cycle probability and cumulative odds estimates across the first three IUIs. Female Age IUIs this cycle Single IUIDouble IUI (two inseminations this cycle) Semen Quality (quick) Auto — use detailed values if enteredNormal parametersLow count/motility … Read more
Enter cycle timing and symptoms to see your chances of implantation vs period and when to test next. Timing Do you know your ovulation date? NoYes Start date of your last period (LMP) Average cycle length (days) Ovulation date Bleeding started on Bleeding details Pattern (pick the closest) Only when wipingSpotting on underwearLight flowModerate flowHeavy … Read more
Estimate your chance of pregnancy from a single encounter using the withdrawal method (sometimes called the ‘pull-out’ method). This simple calculator uses cycle timing and whether use was typical vs perfect. Contraceptive: Withdrawal (pull out method) Do you use this method perfectly? NoYes Date of Intercourse Start Date of Your Last Period Average Cycle Length … Read more
Trying to understand your odds of pregnancy while on the pill? Get a quick, baseline estimate in seconds. Contraceptive: The Pill Do you use this method perfectly? NoYes Date of Intercourse Start Date of Your Last Period Average Cycle Length (Days) Additional Contraceptives (optional) Second method — None —Male CondomCombined pill (the pill)Female sterilizationMale sterilizationWithdrawal … Read more
Use this calculator to estimate your chance of pregnancy from an encounter where a condom was used. Choose whether it was perfect or typical use, then (optionally) add a second method. Your result is per-act, based on peer-reviewed effectiveness data and our modelling. It’s not medical advice—just a clear way to put numbers to a … Read more
See how levonorgestrel emergency contraceptive pills compare with ulipristal acetate emergency contraceptive pills by hours since intercourse, weight/height, and number of encounters. Get your estimated pregnancy chance and your first accurate test day. Method Levonorgestrel (LNG)Ulipristal acetate (UPA) Hours since intercourse Enter a number from 0 to 168. Female age Advanced options Number of intercourse … Read more
Missed a birth control pill? Enter pill type, how late, where you are in the pack, and whether you had intercourse to estimate your per-act pregnancy risk. No data stored. 💡 Powered by Peer-Reviewed Science Related calculators Contraceptive Risk Per-act risk by method and use quality. Combine Methods Estimate risk when using two methods together. … Read more
Enter your ultrasound date and the gestational age reported on the scan (weeks + days) to get your estimated due date. Ultrasound date Gestational age at scan — weeks Gestational age at scan — days Calculate > EDD: — Gestational age today: — Methodology & sources EDD from ultrasound: EDD = scan date + (280 … Read more
Enter your embryo transfer date and embryo day (3/5/6) to get your estimated due date instantly. Had an IUI? The IUI due date calculator gives EDD and key milestones. Transfer date Embryo day at transfer Day 3 (cleavage)Day 5 (blastocyst)Day 6 Pregnancy type (optional) SingletonTwinsTriplets EDD is always 40 weeks; multiples often deliver earlier. We’ll … Read more
Wondering when your twins or triplets are due? Enter your details to get an instant 40-week EDD and the typical delivery window for multiples (based on the dating method you choose). Curious about odds? See the chance of twins for your age and history. Twin & Triplet Due Date Calculator Number of babies Twins Triplets … Read more