Pregnancy Calculator

Calculate your due date, current week of pregnancy, and key milestones based on your last period or conception date

Calculate from

First day of last period

Enter a date above to calculate your due date and pregnancy progress

How to use:

• Enter the first day of your last menstrual period for the most common calculation method
• Pregnancy is calculated from LMP, not conception — that's why you're "2 weeks pregnant" at conception
• Use the ultrasound method for the most accurate dating if you have scan results
• Due dates are estimates — only 5% of babies are born on their exact due date
• Always confirm dates with your healthcare provider

❓Pregnancy Calculator FAQ

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