nervous

So I miscarried one week ago today and it has been hard. As each day goes by it gets a bit easier but I still think a lot about it. My fiancé and I were intimate for the first time last night in almost 2 weeks and I'm so scared! We were careful just cause doctor said I should wait till one normal cycle before starting to try again but I'm nervous just cause I don't want anything bad to happen again if I was to get pregnant so quick. Does anyone else feel this way?