“Afraid” of intercourse after miscarriage

I had a miscarriage in October, and although I know intercourse is safe during pregnancy I am so afraid. The reason is because I had intercourse the night before my miscarriage. Logically I know that they were unlikely connected, but I’m still afraid now that I’m pregnant again. I’m 6 weeks tomorrow, but I feel like a crazy person. Any advice? Can anyone relate? Should I just relax? Call my doctor? I see them in 6 days for my first appointment.