I‘m immature with my birth control

I don’t take it at the same time everyday and I forget days frequently. My life is just so hectic with a new baby and everything it’s just hard. I have PCOS and it took me 3 years to get pregnant this first time so I feel like if I’m taking any birth control at all that it’s going to prevent it but idk. My husband cums in me every time and we hate condoms. I asked my OBGYN that since I had one baby does that make me more likely to get pregnant again, like is it easier and he said that it isn’t proven but he’s seen it work like that.. what are y’alls experience with this.