POSSIBLE TRIGGER *miscarriage*

I think I had a miscarriage. Missed period last month, exactly 15 days after missed period, I got a positive hpt this month on 4th, followed by negatives and also just got done bleeding (lasted 4 days like a usual period.) after the positive, I went to the clinic and their tests were negative and said it could be just to early or that I’m having a chemical/miscarriage. I was having all the symptoms and everything. But have been having negative tests and just got done bleeding. If I may ask, what was you’re experiences with ovulation after a miscarriage/chemical? I’ve heard it can take a long time to ovulate after one or it happen fast and that after one, you could be more fertile. I’m going to try temping and opks again when I can but was just wanting feedback or experiences from people who have been through similar. Any info would be appreciated!