I have a very convoluted question. I was diagnosed with PCOS in March of 2015 and placed on birth control. Without the birth control my periods are almost nonexistent and very sporadic. I take nortrel 1/35, which works beautifully for me. No breakthrough bleeding and my period is every 28 days. My boyfriend and I acted irresponsibly this past weekend and had sex with no condom, which is not usual. I usually make him wear a condom as well, even though I take my pill every day and I haven't missed one since March. I have done some research and found conflicting answers regarding my question. My boyfriend did not ejaculate within my vagina, but is it true that pre-ejaculate can contain semen? If yes, what is the probablity of pregnancy from it and should I be worried? Should I just wait until my next period and if I'm late take a test?