pregnant?

hi girls, i'm posting bc i think i might be pregnant. i'm 16 & had unprotected sex at least 4 times this month with my boyfriend but he always pulls out. i get my period around the same time every month. when glow says 5 or 6 days until period, that's when i get it. i get really sore breasts & cramps around when my period is due. glow says 1 day until period & still nothing. my boobs don't hurt & no cramps. i've been eating a ton, sleeping a lot & have been feeling not like myself these past few days. i'm very worried. what should i do. 😞