i'm fifteen years old && sexually active with my boyfriend. we have sex very frequently && have been for 3 months now. after about 2 weeks after we had had sex, we started doing it without condoms, but he pulled out.. but still ejaculated very close to my vagina. a few weeks after being sexually active with him,and him not using a condom, i have had light periods, a nasty, white discharge every day, and my periods are coming later && later && not not lasting long at all..my body is achy, my boobs are sore, and sometimes i wake up with the most awful sharp pains!! i'm afraid i may be pregnant, i am on no birthcontrol or anything.

how much of a possibility is it that i am in fact pregnant?