For the past two days, I've had tender breasts. My period isn't due for at least two more weeks. Although I am worried I am pregnant, I've never had sex, but my boyfriend and I have done stuff. About a week and a bit ago, his penis accidentally touched my vagina, it didn't go in, but it touched the outside. There was no cm, but I'm pretty sure there was pre-cm. I'm too afraid to tell my mum though. Is it possible I could be pregnant? Or is this normal?