question: Me and my boyfriend had sex on April 21st. We used protection. The next day I ate unwanted 72. After 5 days I had my periods. The cramping was dreadful and it lasted for a longer time like 7 days. But this month there is no sign of my periods. I don t know what s wrong. I feel light pain in my lower stomach but it comes and goes. My last period was on April 28th. I am worried. Can it be the side effect of the pill? Or is it pregnancy? Help!