Naegele's Rule Formula

Pregnancy Due Date Calculator

Estimate your baby's expected arrival date, track your current pregnancy trimester, and explore key prenatal ultrasound milestones.

First Day of Your Last Menstrual Period (LMP)

Average Menstrual Cycle Length 28 Days (Standard)

21 Days 28 Days 35 Days

Clinical Standard: A standard pregnancy lasts an average of 280 days (40 weeks) from the first day of the last menstrual period, assuming a 28-day cycle with ovulation on day 14.

Estimated Delivery Date (EDD)

Select LMP Date

Awaiting Input

1st Trimester 2nd Trimester 3rd Trimester

First Ultrasound Window: —

Level 2 / TIFFA Anatomy Scan: —

Full Term (37 Weeks): —

Consult Nearby Gynecologists →

Recommended Prenatal Care Schedule in India

First Trimester (Weeks 1–12)

Confirmation & NT Scan

Folic acid supplementation (5mg), Dating/Viability ultrasound (6–8 weeks), Nuchal Translucency (NT) & Double Marker blood test at 11–13 weeks.

Second Trimester (Weeks 13–26)

Anomaly Scan & Glucose Test

Targeted Imaging for Fetal Anomalies (TIFFA / Level 2 Scan at 18–20 weeks), Oral Glucose Tolerance Test (OGTT) for gestational diabetes at 24 weeks.

Third Trimester (Weeks 27–40)

Growth Scan & Labor Prep

Bi-weekly checkups, Growth and Color Doppler ultrasound, Tdap vaccination, monitoring baby movements (kick counts), and birth plan preparation.

Medical Disclaimer: Only about 4% to 5% of babies are born precisely on their calculated due date. Most full-term deliveries take place between 37 and 42 weeks of gestation. An ultrasound performed during the first trimester (crown-rump length CRL) provides the most precise clinical due date.

Select Your Metro Location

Pregnancy Due Date Calculator

Recommended Prenatal Care Schedule in India

Confirmation & NT Scan

Anomaly Scan & Glucose Test

Growth Scan & Labor Prep

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