The reason that I ask is because in march that was the last time i had intercourse but I got my period for april, may, and june but i did not get it in July, and it has not come so far for this month. But my days it comes changes. I took the pregnancy test and it came out negative? I have been sick for about three weeks now...do you think that his anything to do with me missing my period? Im can't be pregnant if i had my other periods right?