Secondary infertility?

Hi guys, I have been researching for answers as I had a healthy pregnancy 7 years ago. Since then I haven't been able to get pregnant, (still with the same person). I Haven't been on birth control for at least 8 years. I did get pregnant last year but sadly had a miscarriage in May 2022. But since then I have had no luck!. I do have a doctors appointment booked, just seeing if anyone has been in the same boat and have any advice?