What Are The Symptoms Of Pregnancy?

Im not sure if i am pregnant but my instinct says i am. Im 160 pounds, 5 feet 8 inches and i have hormone imbalance. I dont remember the day of my last period cause i have an irregular cycle, so its hard to keep track of it. The last time i had sex was june 7, on that same day later in the night i had intense cramping and every night after i cramp so much that i cant sleep, my breast are tender/sore and my nipples are always stiff. About june 14 in the night i noticed some spotting then on june 17 i was bleeding, initially i thought it was my period but it stopped within 20mins it was light so light i didn't need to wear a pad, it was more like discharge mixed with blood. Im very emotional now, bloated and sometimes throughout the day i feel like im about to throw up but nothing comes out but i can taste it in my mouth. Thanks so much im looking forward to an answer