Birth control options

Yvonne
I just had my 3rd baby 2 month ago and I'm looking for a long term one now. I have the arm implant and that one made me bleed non-stop till it was taken out a year after so I started the pills they would make my period longer which sucked but I would forget to take them. So now I wanna try an IUD the mirena can anybody tell me their experiences with IUDs and the side effects. And did it work for you? Thank you