Please help me! I’m scared I am pregnant.

Patient: On Feb. 22nd I had sex with my boyfriend. I was a virgin. Right before I gave him a blow job. He did pre-cum. I have being peeing a lot, veins going to my tits, weird smells, missed period for four days now, and sleepy. My mom will kick me out, I am only 14. He is 14 also. I have no idea what to do. He said he felt his dick leave my vagina but I am not sure. I really need a doctors help asap! I have been in A LOT of stress! But because I am afraid I am pregnant. Please help me!