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Dr. Marjorie Greenfield
Specializing in pregnancy and birth.
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Information from Early Ultrasound
QUESTION
Dear Dr. Greenfield,
During a recent ultrasound I was informed that I had two sacs; one had a viable pregnancy at approximately six weeks and the other seemed to be empty. My blood count went from 27000 to 52000 in a matter of 48 hours. Does this suggest I am pregnant with twins or could it be possible that I could have lost one?

— Meggiemay in UK

ANSWER
October 3, 2001
Dear Meggiemay,
By six weeks of gestation, which is about four weeks after conception, any viable pregnancy should be visible on ultrasound. Your hCGs seem to be rising appropriately, and are consistent with about six and a half or seven weeks. So I think you are most likely going to have one baby.

While the information we get from early ultrasound can be helpful, it sometimes gives us information we might have been better off without. A few decades ago you wouldn't have been dealing with this confusion and anxiety, because an ultrasound wouldn't have been done at this early stage of pregnancy. Now you are having the complex feelings of simultaneous good news and bad news, when, with a little less knowledge, you would have just been celebrating a normal pregnancy. I hope that soon you will see it this way and start to enjoy the fact that you're going to have a baby. Congratulations!

— by Marjorie Greenfield, M.D.

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