<s>[INST] I went in for a vaginal u/s being at 8 wk 1 day pregnant from my LMP and my Dr. said there was no heartbeat that baby measured at 6 wk 5 days 0.78 cm. Could it be that my calculation was off do to late implantation? Dr. said that I was going to miscarry and opted for D&C or pills to induce my labor. I told her I would like to wait another week and come back for another u/s hoping there would be some changes with the baby s heartbeat. Do I just having fallen hopes? [/INST] Hello, I have gone through your query and understood your concern. If the sonogram performed was through the trans-vaginal route and if your sonographer is an experienced person, it is likely that you may have miscarried, provided you have regular cycles and did not miscalculate. When this is not so, it is better to wait and see. In such a scenario, serial titles of serum beta-ChatDoctor are often done. Good progress of pregnancy is indicated by doubling of titles every 2-3 days. This should be coupled with follow-up sonograms. Wish you good health. </s>