Before I get judged, please, hear me out. I'm 17 years old, and 2 weeks ago I had sex with my boyfriend, we used withdrawal method, a week after we had sex I started to feel bloated and ai kept palpitating (and I just assumed that it's because I drink a lot of drinks with caffeine) but suddenly I started to feel worried and scared, I was wondering if I was pregnant, (I opened this up to my boyfriend by the way) on the day my period was suppose to come (usually at the end of the month) it didn't but after a day it came and I felt so relieved, it was kind of brownish red, I didn't think it was spotting or implantation bleeding because based on what I've researched it was supposed to come out as a few drops, mine wasn't too few and wasn't too much. But, the next day I stopped bleeding and then I started to feel worried again, wondering if I'm pregnant. Please help.