Try not to worry, that doesn't help u or baby. But I also know that is easier said than done. I am high risk and worry a lot too. Really anything can happen at any time in a pregnancy and miscarriage can happen up to 20 weeks. Changes drastically slim down once you get thru the 1st trimester though.
I'm just worried because you can think your pregnant even though tour baby has died weeks before Hand with no sign
U shud not be stressing about miscarriage it normally happens in the first 12 week's, I know it's horrible that it could happen you but it is less likely to happen in the 2nd trimester