Ok So I Had Unprotected Sex The 12th Of October

Ok so i had unprotected sex the 12th of October an Then i started spotting the 28th . On an off till today an then i go to wipe an nothing . An i try to go based off my last period to see if it was on time or even my regular period . But idk am I pregnant? Ive been super tired an my stomach keeps gurgling. An off feel as if im breathing hard or short of breathe .