Gestational Age Calculator

weeks + days

Pregnancy progress

First Trimester: Weeks 1-12 (months 1-3)

Second Trimester: Weeks 13-26 (months 4-6)

Third Trimester: Weeks 27-40+ (months 7-9)

Note: Gestational age is calculated from the first day of the last menstrual period. Actual fetal age is approximately 2 weeks less.

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