Pregnancy Due Date Calculator

🤱 Pregnancy Due Date Calculator

Calculate your baby's due date and track your pregnancy journey with our comprehensive calculator

Last Period (LMP)

Ultrasound Dating

Conception Date

IVF Transfer

Reverse Calculator

Naegele's Rule: This method calculates your due date by adding 280 days (40 weeks) to the first day of your last menstrual period.

First Day of Last Menstrual Period

Average Cycle Length (days)

Ultrasound Dating: More accurate than LMP method, especially if you have irregular cycles or are unsure of your last period date.

Ultrasound Scan Date

Gestational Age (weeks)

Additional Days

Conception Date: If you know the exact date of conception, this provides the most accurate due date calculation.

Conception Date

IVF Pregnancies: Special calculation for IVF transfers. Due date is calculated based on embryo transfer date plus 266 days.

Embryo Transfer Date

Embryo Age at Transfer

Reverse Calculator: Find possible conception dates based on your due date or baby's birth date.

Due Date / Birth Date