I normally have a very heavy and painful period each month. I just turned 20 on the 22nd and my period started on the 27th (2 days late). My boyfriend and I dry humped on the 9th of this month, between the two of us we had 3 layers of clothes on. He was very rough and I am not sure if he ejaculated or not. This time my period is very light and I have not had any cramping. I was stressing about pregnancy for a week leading up to my period. Could it be light due to stress or could it be a sign of pregnancy?