I started my period around July 4th, and on July 18 my boyfriend and I had sex, but he ended up ejaculating in me. I took Plan B within 12 hours of the incident, and had no symptoms. It's been almost 2 weeks since then (around the time I should start my period, but I haven't yet), and I'm having a lot of symptoms. I'm having bad cramps in my lower abdomen (which I never get before my period, only when I'm actively having it), my breasts are sore (but not swollen and no color change), I feel nasueous and bloated and certain foods make me feel gross. My boyfriend thinks that I am overthinking it and imagining the symptoms, because I did take a pregnancy test and it was negative. However, I'm afraid it would be too early to tell on the test. I'm afraid that I am pregnant.
I guess my question is what are the chances that I am? And does Plan B make your next period more painful (with cramping) and cause more PMS symptoms than normal?