Hi, I Am A 16 Year Old Female. I Have

Hi, I am a 16 year old female. I have had a period once or twice before (about a year ago) and then never again. Recently, feb 27, my boyfriend and I had intercourse. He did not ejaculate inside me though. It has been about a month and a half since and my breasts feel tender and sore. I am very scared that I am pregnant.