I need some help/advice

I’m 15. This morning I woke up vomiting, I instantly assumed I was pregnant since I have been very irresponsible about sex. I took a pregnancy test and it came out positive. I know I should’ve been responsible if I didn’t want to get pregnant, but now it’s happened. I need advice on what to do and how to tell my parents. My boyfriend has been very supportive and we have both decided we would like to abort. We are not prepared nor responsible to take care of a child. Please anything will help, thanks.