Anytime you don't use protection you run the risk of becoming pregnant. Be extremly careful in these times you have to assume everyone has something so protect yourself if he doesn't wanna cover it up he doesn't want the nookie.
Now to answer you ? there is a slight possibility but since you took a plan b the next day you should be fine. Know that even before sex he has pre-*** that comes out that you can get pregnant from. BE MORE CAREFUL, if you must have sex.
well if i'm incorrect please....go tell my obgyn....since he's the one who informed me of this when i first started having sex. so until he tells me other wise....i'll go by what he says.
The last post is slightly incorrect. While there CAN be sperm in pre-ejacualte, it's not always there. In your case however, I would assume that there would most likely be sperm present. Sperm is only present in pre-ejaculate when there has been a recent ejaculation. Also, pulling out is not effective. If he is waiting so long to pull-out that he cums all over your stomach, that is NOT safe. Also, how can you unexpectedly have sex? if you don't want to get pregnant, use condoms AND get on the pill. Also, plan b must be taken within 72 hours, so you took it about a day late. Plan b would do nothing in that case, unless the timing was actually 72 hours, but you're really pushing it. You've put yourself at risk for pregnancy and stds. If you're not pregnant this time, use protection next time.
it's not the sperm on his body you have to worry about. if he didn't use protection there's a chance you could be pregnant. a guy produces "precum" through out sex. it's what helps keep you "lubed" and there IS sperm in pre-ejaculate. so if you're not on birth control and you don't start your period i'd be buying an hpt.