Natural birth control

Ok so I got an IUD placed at 6 weeks pp. It's always bleeding and I've noticed my skin is horrible, plus mood swings, anxiety etc. I got on antidepressants thinking it was postpartum depression. But it's been 2 months on meds. With little change. I'm leaning toward getting iud removed and letting my hormones try to self regulate as I got the IUD is quickly after baby.. I go Monday to get it removed. That being said the obvious choice of birth control is condoms. Although they tend to bother me. I know pull out method isn't reliable (although we did this often the year before getting pregnant and it worked. pregnancy was planned) I tried a cervical cap with spermicide before pregnant and never could get it to stay in properly. Plus chemical spermicide gave me infection. I do have a natural spermicide but dunno how reliable it would be on its own. I'm interested in learning to track my cycle and try that. I learned some stuff when we decided to get pregnant. But I know I'll have to let my body get back to normal, or knew normal. Before I can call it reliable information and relearn my cycle

Any information would be helpful.