I had my period April 18th-22nd had sex on the fourth of may and got my period the 11th-15th which was a week earlier than it should have been. Not as heavy as normal either. I didn't think anything of it and had sex again the 25th of may. My stomach has been weird for about two weeks and I constantly want to throw up. I usually never sweat and have been sweating a lot. Also I smelled pickles in my room the other day and had to go buy pickles. I can't lay on my stomach without a weird feeling now.