I really want to knw if I'm pregnant,Ihave taken 2 test they where neg.on sept22 was my very fertile day I had a sperm donor on that day, the next day sept23 was ouvlation time,sept29 is when Istarted feeling sick with the diarrhea,spitting,heartburn,headaches,now this week I'm having to pee more,more headaches,cramping on and off,now I'm feeling as if my periodis comeing,but there is nothing there when I check.plus I'm starting to become moody, so I don't know what to do can you please help me.