please read , Idk what's going on HELP LOL

So , my last period was May 15 / last month . My cycle stays on for 5 days. My last day of my last period it was pretty much half way off me and my bf had sex and he came in me . maybe twice. My birthday was the next weekend , I'm pretty sure I was ovulating he came in me again THEN again THEN the next day too . Since then I've had confusing symptoms. My breasts and chest mostly. I swear it feels like something is sitting on my chest. My chest feels sore my boobs feel achy on and off. No they don't hurt to touch. I occasionally get sick to my stomach mostly at night , no energy , headaches when I rarely get them , like a week ago I had bad cramping ! today is June 12th 3 of my period apps say my period was supposed to start today but I'm just having mild cramping and discharge that I keep checking thinking it's my period lol. PERIOD OR PREGO ? I feel like I'm on my period but without blood idk what's going on !!!