What should i do?

Jida
I just had a miscarriage last saturday, 2 days before my baby reached 3 months. It was a complete miscarriage. My whole pregnancy is full of joyful and happiness since it was our first baby until i ended up bleeding throughout my pregnancy. Anyway, the doctor advised to prevent sex for at least 6 weeks to make sure my body is back to normal and to ttc at least 3-6 months after. Well, we had sex once. 5 days after my miscarriage. So i am afraid of whats going to happen. Im afraid, i might get pregnant. And im afraid, something bad might happen inside my body. I mean, of course i want to get pregnant but after my body is back to normal. Does anyone have experience with this?