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Okay guys. I'm a little worried. My SO and I are trying to conceive. I've been extremely exhausted - a sign of pregnancy - along with a slight elevation in basal body temperature. My period was expected Wednesday and nothing.. Then I started spotting Thursday evening into Friday morning.. Then nothing, again. But still a negative PT. Then Friday night it hit full force and awful. My uterus feels like it's falling out - cramps are WAY worse than any period I've ever had. And I literally have to change my tampon every half hour to hour.  I can't eat and I can't get out of bed. Nothing is helping my pain and it's to the point where I can't even feel my legs. Is this normal? Should I see a doctor?