Hi, I have had my period on a regular schedule since the day i got it and have NEVER EVER experienced cramps. Recently i had sex and had to take plan B. the next period i got after taking the pill gave me massive cramps which i assume had something to do with taking the pill. Now, i'm on my second period after taking the pill and am experiencing cramps. is this due to the pill? or should i contact my doctor.

any suggestions would be appreciated.