I'm 6 weeks pregnant and everything is pretty much ok, only the regular symptoms like nausea sometimes very light cramping in abdomen like during period. The only thing that bothers me is that sometimes I get real freezing and I m inside a room with roomtempeture. I am shivering for at least an hour. It already happened 4 times so far.Why is this happening is that normal?? I never heard of shivering during pregnancy before.Could it be an ectopic pregnancy. But I m not bleeding neither spottin. I took a few pregnancy tests and they are all positive. I heard during ectopic pregnancy test sometimes come out negative. I ' m really scared. Somebody please help me. Thanx