Pregnancy Calculator
Patient information
Optional — appears on printed report.
Calculation method
Date of first day of last menstrual period (LMP)
All data kept locally in your browser only.
Current gestation
—
weeks + days
Estimated Due Date (EDD)
—
—
Trimester
—
First / Second / Third
Progress
0%
of a 40-week term
Weekly development
Enter data and calculate to view week-by-week development information.
Estimated baby size: —