help please

Ok. So my SO and I are sexually intamate and we only use the pullout method. He had strong pull out game, but the problem is that neither of us want him to pull out. So I think we need BC. 
I was wondering what is the best one. I need one that is really low involvement and that I wouldn't have to remember a lot. If it got rid of my periods all together that would be fabulous. I was thinking of going with the shot, but I'm hearing bad things about it, mostly the "more likely to get depression" part because I have had it before. And the month long periods. My SO mom has had the shot and she was perfectly alright with it.