hi i'm 18 and i've been on the bc pill for about 2 years now and about a week ago i had unprotected sex with what is now my ex boyfriend the day i was suppose to start back up on my bc pills after my period and i ended up forgotting to take my bc pill. Near the end of the week i started getting lower abdominal pains and yesturday my boobs and nipples started feeling sore and kinda tender, my nipples have also become a reddish color.. is this a normal thing when you forget to take your bc pills?? or am i be pregnant?? :-( whats wrong with me??