Hi my period was over due last month and i thought i was pregnant got blood tests they came out negative, then i finally got it. Once it was over a week went by and i got my period again ( i don t know why ). Ever since this which was last month, i haven t got my period and i feel sick. I am not sure when to expect it because it was irregular last month and happened twice. I am not sure if i feel nauseas because my period is late, as i get nauseous before hand all the time. Lastly, I have had unprotected sex.