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I had a miscarriage on 8-13, bled for about 16 days. My hormone levels were down to 5 by the beginning of September, meaning it wasn't showing as me being pregnant any more. About 5 days later I did another pregnancy test that showed up positive and when I went to check my hormone levels, sure enough they were climbing back up. I had my first ultrasound today. It estimated my pregnancy to be about 8 weeks and 4 days, which would place conception around 8-15 or 16. I know I'll never have a sure answer to this, but what is the most likely situation here? If the ultrasound is a few days off, is it possible that I got pregnant with this one while already pregnant with another and this one "kicked it out"? Or does it seem more likely that I actually got pregnant while in the process of the miscarriage? Either way, I know that this is a miracle baby. I haven't heard too many times of either one of those situations happening, but the answer to this question is just nagging at me!