I am a 17 year old who has missed her period by 3-4 days. I am sexually active but I use protection. We use a condom and he pulls out before he even ejaculates. I'm bloated, my stomach is sticking out (I have been eating a lot cause im stressing about this and cravings), im having lower back pain, and i'm moody. This past month I have been excercising my lower body a lot because spring break is coming up, im stressing and having anxiety because of my new job and I'm having a lot of relationship problems that has been causing me emotional disruption.This is scaring me and I hope I'm not pregnant. Someone please help me get an idea as to what this this could be in my age area.