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A member asked:

If i am 6 weeks pregnant. my conception date and fertile window is 6 weeks ago? ultrasound this early can be off how many days? thanks

A doctor has provided 1 answer
Dr. Yvette Kratzberg answered

Specializes in Pediatrics

Early: A pregnancy test will be positive as early as 1 day after a missed period. A transvaginal untrasound can detect a fetal heartbeat with very high accuracy as early as 6- 7 weeks. If your dates are off and you are actually less than 6 weeks pregnant, it is possible that the heartbeat will not be detected until next week.

Answered 6/5/2020

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