2 missed miscarriages in a row

I need some reassurance.

I had a missed miscarriage in December 2019, went for my 12 week scan and the baby had stopped developing at 8 weeks. I didn’t show any signs like bleeding or cramping so had no idea.

I’m currently 10 weeks and have my dating scan in 2 weeks time, what are the chances of having another missed miscarriage?

I can’t get it out of my head that I’ll turn up to the scan and something will be wrong. I would like to think my body would show signs if that was the case but going by last time that didn’t happen.

I just can’t relax, especially when I’ve had no sickness or any other major symptoms.