I am on the mini pill, and Dh and I just started DTD again.....and I am SO PARANOID I am going to get PG again. I have read all about how ineffective it is......

I am not BFing anymore....does that make it even LESS effective? I am trying to take it at the same time each day but I have been late several times. (Never missed one totally, though).
Anyone have experience with it?