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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Frozen Embryo Transfer, Gestational Sac At 5 Weeks And 2 Days, No Yolk Sac, LH Surge, Late Implantation ?

I am meant to be 6 weeks pregnant through a Frozen embryo transfer (natural cycle) I went for an ultrasound yesterday and the gestational sac was only measuring 5 weeks 2 days (approx) there was no yolk sac visible (though the ultrasound tech did not zoom in to the gestational sac). My LH surge was detected by blood test so is it possible that I ovulated closer to 48 hours from my surge or that I implanted late?
Mon, 25 Jun 2012
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OBGYN 's  Response
hi,
usually there could be some variation between gestational age according to last menstrual period and gestational age according to ultrasound,
this could be around 3 to 7 days,
as you have seen gestational sac, no need to bother,
wait for one more week,
then you go for ultrasound by that possibly heart beat of the fetus can be seen.
take care.
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Frozen Embryo Transfer, Gestational Sac At 5 Weeks And 2 Days, No Yolk Sac, LH Surge, Late Implantation ?

hi, usually there could be some variation between gestational age according to last menstrual period and gestational age according to ultrasound, this could be around 3 to 7 days, as you have seen gestational sac, no need to bother, wait for one more week, then you go for ultrasound by that possibly heart beat of the fetus can be seen. take care.