Ok, so I started on birth control a few months back, and everything went pretty good for awhile. But last month I was going through some money troubles and since I wasn't having sex at the time, my birth control was the first cut in my budget.

Well, I'm getting back on and I was just wondering if it started being effective right away or if I should use a back up too and for how long.

I normally do anyways, but I'm just curious if I need to be worried whether or not he's got a condom on and if I can just not wear one at all.