Using an IUD is one of the most effective ways to prevent pregnancy, but risk isn’t zero—especially early after insertion or if the device has moved. This quick calculator uses IUD type, time since insertion, whether strings are felt, possible expulsion signs, and when intercourse happened to estimate your per-act risk and what to do … Read more
Human chorionic gonadotropin (hCG) is a hormone your body makes in early pregnancy. It is mainly made by tissue that will become the placenta after the fertilised egg has implanted in the uterus. Laboratories usually measure the beta part of hCG, so you will often see “beta hCG” on a blood test report. This is … Read more
Enter how dark the test line looks next to the control, add your date or DPO, and we will plot your line progression. You will see a simple trend, a projected day your test may match the control, and a rough hCG trend estimate for context. Pregnancy Test Line Progression Checker +Add another test −Remove … Read more
Got a single beta-hCG result and wondering how many weeks pregnant you might be? Enter your value to see the most likely gestational-age window, plus a full table of typical hCG ranges by week. Beta-hCG level mIU/mL Enter a single lab value. If your lab reports IU/L, the number is the same as mIU/mL. calculate … Read more
Use this calculator to estimate hCG doubling time from two or more blood draws when you’re expecting twins or triplets. Twins Triplets hCG Draw 1 Date and time hCG (IU/L) hCG Draw 2 Date and time hCG (IU/L) Enter at least two draws with date/time and value. Sample data is prefilled so you can test … Read more
Check whether your AMH level is typical for your age. Enter your AMH (ng/mL) and age (24 to 50 years) to see if your result falls within the age specific reference band (mean ±1 SD) and where you land on the chart. AMH reflects ovarian reserve, it is not a direct test of overall fertility. … Read more
Wondering how many days after your period you can get pregnant? Use the calendar below to see your fertile window by day based on your cycle length and period dates. Other calculators 📊 Advanced Pregnancy Chance 🎂 Fertility by Age 🤰 Due Date Calculator 🔎 Conception Calculator 🌱 Implantation Calculator 🧮 All calculators How Many … Read more
Key points Conception means fertilisation near ovulation, not the day you had intercourse. The fertile window usually spans about six days and ends on ovulation day. Sperm can survive in the reproductive tract for up to about five days in the right cervical mucus, so intercourse before ovulation can still lead to conception later. Implantation … Read more
Select a vessel and GA to see typical PI/RI/PSV ranges and whether your value is below, within, or above the band. Vessel Umbilical artery Middle cerebral artery Choose the vessel, then pick a Doppler measure below. Measure Pulsatility index (PI)Resistance index (RI)Peak systolic velocity (PSV) Gestational age — weeks Days (0–6) Your value (unit depends … Read more
Enter two values (EFW g, AC mm, or FL mm) to see the percent size difference between twins and a plain-language band. Measurement type EFW (g) AC (mm) FL (mm) Discordance uses the same formula for all three: (larger − smaller) ÷ larger. Twin A Twin B Calculate Clear Copy summary Discordance — — — … Read more