Ovuloom📖 Gestational Age
The age of a pregnancy counted from the first day of the last menstrual period (LMP), not from conception. Standard pregnancy is 40 weeks gestational age.
In Detail
Gestational age is approximately 2 weeks longer than the actual embryo age (conceptional age) because it's measured from the LMP, which is about 2 weeks before ovulation/conception. Milestones: embryonic period is weeks 3-8, fetal period begins week 9, viability is around 24 weeks, full term is 39-40 weeks. Due dates are calculated as 280 days (40 weeks) from LMP. First-trimester ultrasound dating is the most accurate method for establishing gestational age.
Track & Understand Your Cycle
Ovuloom's AI learns your unique patterns for personalized insights.
Download Ovuloom Free →