Set your estimated due date to start the countdown.
About this calculator
Overview
Pregnancy countdown tracks weeks until due date. Full-term: 37-42 weeks. Due date calculated from last menstrual period (LMP) or conception. Essential for pregnancy planning and preparation.
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Pro Tips
Due date is estimate; only 5% deliver on exact date.
First trimester: weeks 1-12.
Second trimester: weeks 13-26.
Third trimester: weeks 27-40+.
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Fun Facts
"Average pregnancy: 40 weeks from LMP."
"38 weeks from conception."
"Twins average: 35-36 weeks."
"First babies often arrive 1-2 days late."
Formula: Due Date = LMP + 280 days (40 weeks); Weeks Remaining = (Due Date - Today) / 7
