I am supposed to start my period today December 31st but after sex with my boyfriend I started light spotting on Thursday December 28th - 30th not enough for a tampon or panty liner only when I wiped. I took a pregnancy test last night and its was a BFN I bought two extra test just in case my period dont show. I did throw up a couple times today and i think it was because of some bad hotdogs i ate last night I had sour belch this morning and my boyfriend said I smelled like hotdogs. No other symptoms besides feeling sick all day.