Birth Control

I exclusively pump. I want to take birth control, but was wondering if you can even take it & if so what kind? I wanted to do the pill because in the past it was the only thing that didn't mess with my hormones or body. I was going to call tomorrow & ask them to call in the scrip so I could start taking it now & have it start taking effect & have it being effective by the time I'm 6 weeks pp on Nov. 7th. Then I thought that birth control could effect my baby through my milk..so here I am. Lol.