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a viable pregnancy based what we saw on U/S?

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I had a missed miscarriage in December and my Dr gave us the ok to try again. I got my first period on Jan 13th, positive ovulation test on Jan 27th and first faint positive on Feb 7th (it got darker every day after). As of yesterday I should have been 6w4d according to my dates. Well, I went in for an ultrasound yesterday and it looks as though it's only the beginning formation of a gestational sac. I had blood drawn yesterday to check HCG levels and go back tomorrow for more blood to be drawn to see if they are doubling. My question is, is it possible this is really another missed miscarriage, or is there any...ANY remote chance of it being a viable pregnancy. I'm not asking if there's a chance for a miracle, but according to my dates and what we saw on U/S is there a chance? The ultrasound tech said it looked like the gestational sac was about 3-4 wks. (It was sooo small). Thanks for ANY response.

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replied February 29th, 2012
First Trimester of Pregnancy Answer A32167
Welcome to ehealthforum,
It is difficult to answer the question regarding prediction of viable pregnancy without further evaluation. There can be mismatch of dates depending on when you conceived and the implantation occurred. If you have conceived, it would be close to ovulation time (usually 14 -16 days after your LMP), and counting from your ovulation time (as indicated by ovulation test date), you will be about 4 weeks pregnant as of today. If pregnancy has been confirmed, consider getting serial HCG levels estimated. Doubling up of the hormone levels in 48-72 hours will show that pregnancy is going on smoothly. An early ultrasound scan done will help to confirm gestational age and viability. Early scans can at times fail to detect the fetal pole and heartbeat. You can consider repeating the scan (preferably transvaginal scan) after 1-2 weeks, or as suggested by HCG levels. Be in regular monitoring and follow-up with your treating doctor/gynecologist and report any new/abnormal symptoms immediately.
Take care.

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