She won't get prego cause if I'm right its been in her system for 9mnths. You guys should be ok but if your still super worried let her take the morning after pill.

I'm sure she is not pregnant. That is what BC is for, so you don't have the scares. I guess she could take the morning after but I really don't see the need to.

Depo-Provera is immediately effective if she received her first shot during her period, and if not - it's effective withint 7-10 days after her first shot. By her third shot, there's certainly nothing to worry about.

As you've probably heard a million times, no birth control isn't 100% effective, but there really is no need to go spend a bunch of money on Plan B when she's already on Depo.

I'm on it, and my boyfriend and I never use a condom. We've yet to have any problems. So, take it easy. :]