Me and my boyfriend like to fool around a lot, and I'm not on the pill. However this is the first time we actually had sex, with a condom but it wasn't on the whole time. He put it on about half way through, and pulled out when he cam. I have a irregular period, so a missed period or light one has been happening forever. Is it possible that I am pregnant?

Unprotected sex = Pregnancy.

If you like to fool around and I am guessing you are young, get yourself down to Planned Parenthood and protect yourself. If you are not ready to be a parent, be responsible with your sexual activities and protect yourself. You can't change a mistake after it happens, but you can be smart enough not to make that same mistake again.

Condoms & the pill, at least.

"Pulling out" has no effect as birth control. By then, it's too late.

My best friend and her now husband used that "method" the first time they had sex. They put the condom on halfway through. There are sperm that are released before actual ejaculation... that can get you pregnant too... that's how my friend got pregnant. If you don't want to get pregnant, don't protect yourself half way, or you are always going to run that risk... protect yourself from the beginning. Not halfway through...