Condoms or something else after baby?!

Regs

Alright so the deal is this, I DO NOT want another baby after this one for at least 3 or so years. I will be getting the rods implanted in my arm as soon as I can after baby is born but the in between time is like 6 months I think? Anyway I wanna know if we can rely on just condoms (and the morning after pill if one happens to break) or if I should also go on the mini pill or something else that's safe?