I am 20 and still virgin. Me and my boyfriend didnt actually have sex but we had sexual encounters. My boyfriend tried to put his penis in me three or four times.I am having final exams this week and I am kinda stressed.My period hasnt arrived for two or three days. I read online that Precm can get you pregnant and I was very worried. I felt cramps and tendering breasts two days ago. So I took a pregnancy test and it was negative.But my period hasnt arrived yet. I know this sounds silly but I am really scared.