VTE Risk Score Calculator in Pregnancy

Calculate VTE risk in pregnancy and postpartum with the RCOG scoring model. Enter 23 clinical factors to see if blood thinners are recommended.
VBAC Calculator

Estimate your chance of a successful VBAC using the 2021 Grobman model. Enter nine clinical factors to see your predicted success rate and uterine rupture risk.
Chances of Having Twins Calculator

Estimate your chance of having twins based on maternal age, height, BMI, family history, and fertility treatment.
Testosterone to Estradiol Ratio Calculator

Enter your testosterone and estradiol lab values to calculate your T/E2 ratio. See where your ratio falls on the scale and what it suggests for hormone balance.
Stillbirth Risk Calculator

Estimate stillbirth risk from maternal age, BMI, diabetes, hypertension, and other factors. Enter your details for an instant risk estimate per 1,000 births.
Sperm Analysis Calculator

Evaluate semen analysis results against WHO reference ranges for volume, concentration, motility, morphology, and vitality.
Reverse Due Date Calculator

Enter a due date, conception date, or intercourse date to calculate the other two. See pregnancy length, milestone timeline, and due countdown.
Progesterone to Estrogen Ratio Calculator

Enter progesterone and estradiol in any lab unit to calculate your Pg/E2 ratio instantly.
Pregnancy Weight Gain Calculator

Track your pregnancy weight gain against IOM and ACOG guidelines. Enter your pre-pregnancy BMI and gestational age for personalised targets.
Pregnancy Test Calculator

Find the best day to take a pregnancy test based on your cycle length and test timing. See your probability of a positive result if you’re pregnant.