Terrified to try again after miscarriage

Christy
I had a miscarriage in October. I was 9 weeks when I found out the baby had stopped growing and I was devastated. That was our first pregnancy. The doctor said she didn't see anything that caused it so I won't be considered high risk when I am pregnant again, but I am so scared of losing another baby. I don't want to go through the heartache again. Can anyone share any encouraging successful pregnancies after a miscarriage? Thanks so much in advance!