I have wondered how accurate HCG levels are in very early pregnancies. I had a slowing in HCG rise at 10 days post embryo transfer and then they began to rise at a rapid rate. I had an ultrasound at 5wks and it showed a gestational sac that measured to be accurate for dates, however, there was no cardiac motion. I will go back in a week for a follow up. I have it in my mind that this is not going to pan out to be a normal pregnancy because of the slowing of the HCG's over the course of a 48 hour period.
Any information is helpful.
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