Why hasn't my period returned? "i had my son 8 months ago and have only recieved my period once and that was in the beggining after i had him. i have taken 3 pregnancy test at differet times all negative but my belly is rock hard."

If : If you are still breast feeding then you period will not start until you stop. Otherwise, there are many different reasons why your period may not have restarted: fluctuating hormone levels, stress or possibly uterine or ovarian issues that need to be explored. Either way you need to see your primary care doctor to get this evaluated.

Agree with Dr. S: One additional item, if you do not wish to get pregnant, practice contraction, all the time. Wish you good health.