I've been under a lot of stress this month.. And about a month and a half to two months ago I took a plan b pill. I was supposed to get my period today or yesterday most likely..and I have sex one time this month but with a condom and he didn't finish. I've had anal sex a few times but that's it, he never put his penis inside of me without a condom, maybe one time it touched on the outside, if even, but that's it. Should I be worried? Please help!