I dont know if I might be pregnant?

I am 16 years old. Just turned 16 about a month ago. I was fooling around with a guy that I like and it lead to unprotected sex. I dont usually keep track of my cycle because I was never planning on having sex until I was married… but it just happened. I usually start around the beginning of the month. We did this on Tuesday June 28th and it is July 4th today. I don’t have any symptoms or anything but I always get cramps a few days before my period and I haven’t had anything yet. I’m really scared and I’m not ready for a child and my parents would hate me. What should I do?