AM I PREGNANT

Ok so i’m 17 but I lost my virginity about 4 days (month ago) before i turned 17, anyways the first two times we were just getting use to it and neither of us had protection and he didn’t cum. The last two times (making it 4 in total) we did use protection. My period is 8 days away but ONE of my boobs is sorta sore and looks bigger. I, of course, googled it and most of every website says first sign of pregnancy. Therefore i’m scared, BUT that is my only sign right now. I’ve taken the pregnancy quizzes and they all say negative but that doesn’t give you a good answer. I’m just super worried and need opinions. I know to be sure it says wait until your missed period but it feels so far away as if I can’t wait. It started two days ago and that is the only thing.