Hey, well im 18 years old and ive never been pregnate and I have no one to talk to about this to. so I got my last pereod on november 15 and I hd sex on november 18 with out protection or birthcontrol. Regularly I get my period at the begining of every month. And according to my dates ive been late on my pereod 4 weeks , but im really scared to take a pregnancy test :/... Coul I be pregnate ??