Hello, I haven't had penetrative sex, but rather fooled around with my boyfriend by rubbing our genitals together (sorry for the graphics). There was no ejaculation, but possible precum. I just ovulated today (I saw a lot of EWCM) but feel occasional twinges in my lower abdomen on both sides. I used Plan B two months, if that means anything. What could those twinges mean? Everything I've searched swears that I'm pregnant, but is that really possible without penetrative sex and without ejaculation?