hi doctor, i had unprotected intercourse but not proper intercourse ( as in the penis did not fully penetrate into the vagina , and it was only for some 12 secs) , as a result for safety i had taken i pill , the date was 29th november 2012, i recieved my menses perfectly on time in the month of december on 9th, but now in jan even though my date was 7 th, i have not yet recieved my menses. can you please help me out and tell me what is wrong