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fetal heartbeat at 6 weeks
by TAMPAKIM, Nov 13, 2004 12:00AM
I just had a transvag US. I thought I was 7 weeks, only measured 6 weeks (Ovulated late??). We saw a heartbeat, but the machine did not pick it up/count it. Is it too early, or is it too weak?? I'm to have another US in 10 days....going nutz!
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if that is the case then rest assured it was probably the machine the tech or doctor was using. an u/s machine works by sending out sound waves into the body and when the waves bounce off an object (like a baby) they send an image back. the doppler the doctor uses in the office to hear the heartbeat works the same way.
with that being said....every peice of equipment works on a different level. the dopplers used in the office are at the lowest level a 1....the u/s machine works at about a 5.
a 5 is too powerfull to "hear" the heartbeat. the waves go right through instead of bouncing off of the rhythm of the heart. that's why you can see it but not hear it. because the dopplers are so weak is also why you can't hear with those until about 10 weeks pg, the heart has to be bigger.
i hope all that made sense and you understand my babling, i know i didn't get to 'hear' the heartbeat at my first u/s either and i asked why and that is what both the tech and my doctor said.
good luck. congrats on getting to see the heartbeat.
~nanci
sorry just wanted to be clear
~nanci
http://home.earthlink.net/~misdiagnosed/
Hope some one can ease my mind so I dont go nuts....
I have another scan this friday, a week later. Does anyone know if cycle length can effect due dates? My cycles are on average 35 days which is about a week later than the normal 28 days. I would think that this could be the reason why I'm a week off.