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Free Pregnancy Calculator – Estimate Your Due Date

Use our Pregnancy Calculator to estimate your baby’s due date and track your pregnancy progress. Just enter the first day of your last menstrual period (LMP) or your conception date, and the calculator will instantly show your estimated delivery date, current trimester, and how many weeks pregnant you are.

This tool is based on the standard 40-week gestation cycle and works for all pregnancies. Safe, fast, and accurate — no sign-up required.

Pregnancy Calculator (Gestational age & due date)

Frequently Asked Questions

A pregnancy calculator gives an estimated due date based on medical averages. Actual delivery may vary depending on your body and baby’s development.

You can estimate using your conception date, ovulation date, or ultrasound results. If unsure, consult your doctor or midwife.

 

No — factors like cycle length, ovulation timing, and fetal development can shift the due date slightly. The calculator provides the most common estimate.