after trying for so long I'm finally pregnant

after trying for so long I'm finally pregnant! back in November we had a miscarriage and was completely devastated. 3 months later I'm pregnant again but I'm scared. I'm scared of loosing it again. I don't even want to call my obgyn and go threw all the hcg testing every two weeks to find my rainbow didn't make it again, I'm just scared but excited at the same time. I just don't know what to do.