PCOS & trying to get pregnant

I’ve had issues getting pregnant for 4 years now, I had a baby in 2019, then 6 weeks postpartum I got on the depo shot for about 9 months. I don’t remember if I had a period during those months or not, but my guy is saying I didn’t. After I got off of it my ex and I tried for 2 years straight and I never got pregnant. Fast forward I get an ultrasound on my ovaries and there it is, multiple cysts on both ovaries. Too this day my doctors have told me it would take IVF to get pregnant, and to manage PCOS I should be on birth control, but I feel like getting on birth control is what caused it! My periods are getting more and more regular, there used to be months where I wouldn’t have one and sometimes I’d have one for a month straight. I’m just curious what others with PCOS have done, and if you guys were successful with getting pregnant.. HELP, TIA ❤️