A member asked:

Am six weeks after lmp. gyn saw a normal sac size and thickness. no hb using normal ultrasound. he said normal not see hb untill 8 week by vaginal ult?

A doctor has provided 1 answer

Fetal heart beat: You may see the fetal heart beat as early as 6 weeks, but you should see it by 7 1/2 weeks. Your doctor probably says 8 weeks because 1st trimester us can be off a few days. It may be of value to check your Progesterone level as well. Very low levels are associated with non viable gestations.

Answered 6/30/2014

5.2k views

Thank

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