I took plan b within 24 hours of having unprotected sex. My boyfriend did ejaculate inside me. This was about 5 days before I was supposed to start my period. I am now 9 days late. I have had a pinching pain on my hip, nausea, back pains, breast sensitivity, and very light spotting for two mornings about 6/7 days after we had sex. After that, No period. I'm still having all those symptoms too. Could I be pregnant?