For the last couple days I've been feeling all the pregnancy symptoms . every time I eat I throw up even when I drink water. I pee a lot more I'm light headed all day. I've been getting weird cramps in my lower stomach. But I just had my period a week prior to this. My period before last was off I had it for 8 days I usually only have it for 3-4 days but this period was the normal 3-4 days. I've had my tubes tied for almost 3 years now and was wondering if I could be pregnant or not