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My husband and I have tried years to get pregnant and after many fertility treatments and surgery to get my ovaries drilled open it has finally happened. Unfortunately things haven't been going so well. At my 7w2d appt we got to see the sac, baby and heartbeat of 143 but my sac was measuring behind at 6w2d. Measurements were sac was 14mm and baby was 10mm. They brought me back a week later and the sac had only grown 3mm instead of 7mm so I was now measuring 2 weeks behind and the baby had continued to grow and was exactly the size it was suppose to be and had a heartbeat of 171 so now there was only a differential of 1mm between the sac and the baby. Sac was 17mm, baby was 16mm. Their "news" to me was that either the sac will grow or the heart will stop. 2 days later I went to see a high risk dr because I was sure the baby's heart had stopped by then and I wanted to get having a miscarriage over with and for them to induce it instead of waiting for it to happen naturally. T

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replied November 10th, 2010
Fertility Answer A17062
Welcome to ehealthforum.
Do not be hasty in your decision. Small gestational sac usually results due to late fertilization of ovum (wrong dates). Wait for some more time to see if the baby’s heartbeat is present. Go ahead with testing serial HCG levels and progesterone levels. If they are found to lag behind, then you will need external supplements to make sure that pregnancy is progressing well. Wait for another monitoring scan next week to see if the small gestational sac is suggestive of impending pregnancy loss. Discuss with your treating gynecologist/obstetrician about getting these tests done.
All the best. Take care.

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