Pregnancy after emergency c-section

I had to have an emergency C-section in August of 2015 with my daughter. We had a cord prolapse and it was very traumatic for me. Everything was fine ultimately but I had a miscarriage about a year later. I just found out Friday night that I am expecting. I haven't been to the doctor yet but this app is estimating that I'm about 5w5d along. I am absolutely terrified. I'm scared of another miscarriage, stillborn, another traumatic birth. I would love to have a natural birth because that what I originally wanted with my daughter but I'm scared I won't be able to this time. I'm just so scared of everything.