I have been having sore breast and nipples headaches tiredness eating change and i have been very irritated lately but i keep getting negative pregnancy test what's wrong??

Have you missed any periods, or could you be pregnant and it is not very far along yet ?

Stress issues ?

I had a period for one day in feb but not one in march and i haven't been stressed out lately

Please turn your caps off. In the world of the internet the caps on indicates shouting.

Make sure you are taking your HPTs using first morning urine. If you are, and they are still negative, it may be time for a blood test from your doctor.