1 Week Pregnant

by Pregnancy Week-by-Week Contributors

Q & A

Got questions about Week 1? Other ladies have wondered this…

Q: How are the weeks of pregnancy determined?

"When trying to understand gestational age standards, the best place to start is back in the days before ultrasound and ovulation detection, when the only thing we had to go on to determine due date was the last menstrual period. Ovulation occurs about day 14 of an average 28-day cycle. So conception on average occurs on day 14, or what we might call 2 weeks of gestation. It can be confusing to think that..." Read More

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