I am 19 my last period was June 15th. My nipple have been sore for a few days now. Ive been exhausted... Craving a lot! And have been arroused a lot. I had been in the hospital twice in the last week for extreme abdominal pain. There for I've had two pregnancy test come bag negative. What could be causing this? Please help!

Did you do a blood test at the doctors for pregnancy ?

If you did home tests, did you use first urine of morning?