So I'm currently 15 days late for my period, I was told to wait 14 days after my missed period to test I have taken 3 tests still negative! I am on the pill 5 years never missed a period before all regular. But this past week everything I eat gives me bad heartburn, still have on and off cramps in my lower stomach, I'm tired don't want to get out of bed, headaches, vaginal discharge but my breasts are not sore at all!I'm not just imagining it its real, I feel like crap!I have already been to the doctors test was negative she told me to come back if I miss my next period, has anyone any advice on what could be wrong with me?

The answer is the same for all women in this situation:
You are either pregnant and the tests are not correct yet, you are having an 'off' menstrual month and are skipping a period, or you are sick with something totally unrelated.
Unfortunately all you can do is wait for symptoms to either get better or worse, or to get your period, or to get a positive test result.
What is the vaginal discharge like? Did your doctor test for any infection?

No she didn't test for infection she wasn't helpful at all. Even though I told her what was wrong with me,She just said I would bleed in a few days but haven't! It's so annoying... Discharge is like milky white I've had it before I was suppose to start my period every time I wipe. Guess il just have to wait until the end of this month to see if my period comes, thanks for your help.

Do you have health coverage?
Without it, doctors are usually going to tell you to wait. Tests for medical problems get very costly, and there may be nothing wrong with you. Even with insurance they will. She didn't really do anything wrong - unless it's your gallbladder or appendix or something else related to digestion. It could be a stomach virus, which will pass! Skipping your period could be from the stress of illness.
Take your temp twice every day. Call the doctor if you get a fever.