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How many weeks after conception of fetus does the heart beat

begin and can be seen...
How many weeks after conception of fetus does the heart beat begin and can be seen on an abdominal ultra sound? Sept 27 went to dr office after pelvic pain and found out i was prego. Could not see heart beat on ulra sound. Could of conceived August 14 (or however long after that sperm live) or August 30th (same as above). This was an er visit. I don't know my last period. I have an ob appointment.I guess im just curious based on the dates and no visible heart beat yet if you can advise me when hb usually detected if i should worry based in my possible dates if i should see a heart beat or if out isolates a date or open for both...
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Answered in 10 minutes by:
10/3/2017
Dr. K.
Dr. K., MD
Category: OB GYN
Satisfied Customers: 4,629
Experience: Board certified OB/GYN with 20 years of experience.
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The fetal heart begins beating about 3 weeks after conception. Its not visible on abdominal ultrasound until about 7 weeks from last menstrual period or 5 weeks from conception. Its visible about 1.5-2 weeks sooner with a vaginal ultrasound. You can't base any type of paternity question on whether or not theres a heartbeat but only on the measurement of the fetus on the date you had the scan.
Dr. K.
Dr. K., MD
Category: OB GYN
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Experience: Board certified OB/GYN with 20 years of experience.
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