Who Is the Father? Paternity Probability Calculator

Estimate who is more likely to be the father by comparing intercourse dates against conception timing. Choose the pregnancy dating method Last menstrual period Estimated due date Ultrasound First day of last period Average cycle length (days) Estimated due date The result is only as precise as the dating method used to set this due … Read more

TSH Levels in Pregnancy Interpreter & Levothyroxine Dosage Chart

TSH Interpreter Check if your thyroid levels are normal for pregnancy Pregnancy Stage Trying to ConceiveFirst Trimester (Weeks 1-12)Second Trimester (Weeks 13-26)Third Trimester (Weeks 27+) Your TSH Level mIU/L Current Weight (Optional) lbskg Used to estimate dosage if needed. Analyze Results Please enter a valid TSH value. — TSH comparison ranges* TTC / Non-Pregnant 0.4 … Read more

Baby Head Percentile Calculator

Enter sex, age, and head circumference to estimate a percentile and z-score using WHO growth standards. Use results to track growth over time, not as a diagnosis. Head Circumference Percentile WHO Growth Standards (0–5 Years) Sex Girl Boy Age Wks Mos Yrs Head Circumference in cm Measure the widest part, just above eyebrows and ears. … Read more

Baby Blood Type Calculator

Wondering if your baby will inherit your blood type? Our Baby Blood Type Calculator uses standard genetic inheritance rules (Mendelian genetics) to predict the possible blood groups for your child. Simply select the blood type (A, B, AB, or O) and Rh factor (+ or -) for both biological parents to see the results instantly. … Read more

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