I am 20 years old and am in a sexual relationship with my boyfriend. We ALWAYS use a condom, but we put it on usually in the middle of sex. He has never gone in me without a condom, but we usually start without one and put one on before he goes. I am not on any birth control, but we have not had a condom break or fall off. Last month, I had my period the 2nd through the 9th. Today is the 11th and I have not got my period yet. I experienced a little bit of brown discharge the other day but that has been it. I have been super moody, my breasts are swollen and tender, I have had a constant headache, cravings, and have been super tired. I am usually cleaning my house non-stop, but now I really don't feel like doing a thing. I was wondering if there was a possibility that I could be pregnant?