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How is it that I am 14weeks pregnant an bby measures at 14 weeks when dating pregnancy you arent pregnant the first two weeks?

1 doctor weighed in
Dr. Collin Smikle
Obstetrics & Gynecology

In brief: Due date

The dating for pregnancy is based on your last period and when you ovulate.
With a normal 28 day cycle, you would ovulate on day 14 (2 weeks) and miss your period 2 weeks later (4 weeks pregnant). The ultrasound to confirm the pregnancy 2 weeks later would place you at 6 weeks.

In brief: Due date

The dating for pregnancy is based on your last period and when you ovulate.
With a normal 28 day cycle, you would ovulate on day 14 (2 weeks) and miss your period 2 weeks later (4 weeks pregnant). The ultrasound to confirm the pregnancy 2 weeks later would place you at 6 weeks.
Dr. Collin Smikle
Dr. Collin Smikle
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