Not sure

I got pregnant with my daughter the second month of trying. But with her, the first month, I didn’t track but the second month I tracked my ovulation with an app and tested with kits and used preseed. I was on the fence for a while and decided to try in 2019. Didn’t try too hard.. just did it once and got pregnant while tracking using an app. It ended and was considered a chemical pregnancy. I thought we were done trying for sure. Then we tried again last year. It ended in miscarriage. Anyone have similar experience? Debating on trying again.. this time around doctor said she will give me baby aspirin and estrogen to help. Not sure if I am considered infertile?