tomorrow is my 2nd prenatal appointment!

I misscarried over a year ago and I never made it to my 2nd prenatal appointment.. I'm going to my 2nd apt tomorrow for this pregnancy and I'm just having a hard time trusting my body if that makes any sense.. I want so bad for everything to be okay, and I truly feel like it is.  But there is always that reminder of what happened last time in the back of my head ... any mommies have any advice on how to trust your body again after miscarriage???