Birthcontrol and BFing

Is there certain birthcontrol methods that you can only use when BFing? I need birthcontrol and will be BFing. What are the different methods you can use while BFing?

You can use either basic barrier methods such as the condom, or the non hormonal IUD. There is also a newer b.c. pill which is super low in hormones that is supposed to be ok to take while breastfeeding  

Is it true that you cant get pregnant when breastfeeding?

I used the mini pill. It's only really effective if you take it at the exact same time every day though. So I set my alarm on my phone for 7am. That way it wakes me up, I take my pill ad go back to sleep for half hour til my proper alarm goes off. I never forget to take it, coz it sits right next to my lamp.