I had sex at the end of my period on January 16, 2012. I didn't bleed anymore after that day. I got my period February 13, 2012 for a few days about 3 to 4 days. Ever since I had my child over 2 years ago my periods have beeen irregular and I don't have them for the full 7 days. I have them for about 4 days and not as heavy. I have not gotten my period this month for March. It is now March 18, 2012 and I have no bleeding. I am breaking out slightly, and have have a short temper, which is what happens when I usually get my period. But I'm late in getting my period. What do you think this means? Please help me I'm so confused.