My period is very late and i am getting sharp pains that arent too painful in my ovaries and vaginal canal. these come and go but i have gotten two negative pregnancy tests. my periods are usually irregular but never this late?

If you are concerned, you should see your gynecologist. It is not uncommon to miss a period. This can be due to many things including anovulation, physiologic stress, weight changes, etc. Your doctor can evaluate the situation and determine why you are missing a period. Definitely see your gynecologist if you miss a second period in a row. Best of luck to you!