PMS or Pregnant ??

I need help 😭 .. my period was june 19th-23rd then me & my boyfriend had sex June 25th then again the day i started ovulating, which was July 1st and then again on July 4th & 5th . ever since July 3rd , my symptoms are cramping on my lower back , my abdomen , back pain along w/ headaches , tiredness & being out of breathe , but my breast don’t hurt anymore . i threw up on the 10th of July & some other day before that. i’m unsure about what’s going on , but i feel like i’m pregnant 🤷🏽‍♀️🤷🏽‍♀️ then again .. PMS