Baby Eye Color Calculator

Select the eye color of both parents below (and optionally, grandparents & great-grandparents) to see the genetic possibilities instantly. Enter the eye colors you know. Parents matter most, then grandparents, then great-grandparents. If you are unsure, leave that person as “I don’t know”. Parents Mother I don’t knowBrownHazel / amberGreenBlue / gray Father I don’t … Read more

Contraction Timer & Counter

Use Start and Stop to record each contraction. The timer shows its duration and the time between contraction starts, with alerts for frequent contractions and a recorded 5-1-1 timing pattern. Contraction Timer Track duration & frequency for the 5-1-1 Rule Ready to Start 00:00 Start Possible Labor Alert Your contractions match the 5-1-1 Rule (5 … Read more

Pregnancy Weight Gain Calculator

Enter your pre-pregnancy weight, height and pregnancy week to see a weight-gain range for one baby or twins, plus an approximate range for your current week. Pregnancy Weight Gain Calculator Based on 2009 IOM Guidelines Imperial (lbs/ft) Metric (kg/cm) Pre-Pregnancy Weight (lb) Height Current Week (1–42) Are you having twins? No, SingletonYes, Twins Calculate Recommended … Read more

Chance of Birth by Date Calculator

Enter your due date to see the chance of giving birth on each date around it. The chart shows daily birth probabilities, your most likely week of delivery, and how often births happen early or late compared with the due date. Estimated due date (EDD) This calculator shows how your chance of going into labor … Read more

Beta hCG Level Checker by Week

Enter your beta hCG level and due date to see whether your result sits within the typical range for your current week (3–18). You will also get a simple chart for context and guidance on what your number may mean. Enter your beta hCG level (mIU/mL): Enter your due date: Use your estimated due date … Read more

Euploid Embryo Probability Calculator

Estimate your chance of getting at least one euploid embryo from an IVF retrieval using two inputs: AMH (ng/mL) and age. The calculator shows a single percentage result and a short note about how your AMH compares with a typical anchor for your age. AMH level (ng/mL) Your age (years) Calculate Clear Chance of ≥1 … Read more

Frozen Embryo Transfer Date Calculator (FET)

Plan your frozen embryo transfer. Choose medicated or cryonatural, enter your next cycle start and embryo day (3/5), and we’ll estimate the transfer date, hormone-timing milestones, and your beta-hCG test day. FET cycle type Medicated Cryonatural History of thin uterine lining? NoYesI don’t know Cycle length Used only for cryonatural cycles (default 28 days). Longer … Read more

Stillbirth Risk Calculator

Most pregnancies end in a live birth. This calculator uses a baseline stillbirth rate plus age, BMI, ethnicity and selected medical factors to give a simple statistical estimate. It is for education and counselling only, not to predict what will happen in any individual pregnancy. Age of the pregnant person Height & weight Imperial (ft, … Read more

IUD Pregnancy Risk Calculator

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

What is hCG? Beta hCG, tests and levels

Illustration of a person with hands on hips next to a medical shield icon; feature art for “What is hCG?”

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