I was about to go for my periods ,I say so because I was getting those signs that my periods were about to come. I had unprotected sex with my boyfriend 2 days later I discovered I was Spotting and on the 50th hour I took Levonelle. Later on I discovered again the spotting had gone and I was having some form of brown discharge like brown blood. 4 days later now I have sharp pains in my uterus and my period never came the brown spotting has stopped I'm really scared could I be pregnant or my period just did not come because of the high ammounts of hormone induced into my body