Hi! I am a 24 yr old female. I am now 24 days late. I have been experiencing hot flashes, dull pains under the belly button that last a short time (different then cramping), I have been gassy yet constipated, sore nipples , light headed feeling at times. I took a pregnancy test at home and it was negative. Is there a chance I could be pregnant or should I see a doctor for something else?