Miscarriage and trying for a second

Okay , so my name is Sarah and I’m 22 I’ve always thought I wasn’t able to have children being that I never got pregnant when there were plenty of opportunities for me to until last month July 21st I took a positive pregnancy test and kept taking them because I couldn’t believe it. Then literally the next day I start bleeding and lost the baby at about 4 weeks, I was so devastated so was my boyfriend! So it’s been about two weeks my cervix is now closed and I’m not bleeding.. When do you think is a good time to try again I’m not ovulating right now I keep taking test to see if I am! HELP!!!