I was a month pregnant and miscarried how long can before i can have intercourse again?

I'm sorry to hear that you've miscarried. It's a hard thing for any woman to go through. I miscarried last year at just over 2 months (8w4d) and waited to have intercourse until my bleeding had been completely stopped for a week. My doctor said to wait at least a week after the bleeding was stopped to make sure that my cervix was closed back up so that I wouldn't get an infection. Good luck to you.