I have never missed a period before at all, but now i have missed three of them. my breasts are a bigger and sore sometimes, Negative result from all 3 tests. but no period a doctor told me in 1 of the test there was blood and i had a little stain of blood like brownish as if my periods were coming for the first time but nope nothing came. last period was june 2011
You should see your doctor again. There are many reasons why your periods may be absent. It might even be an ovarian cyst (PCOS). If not, your doctor can try to restart your cycle with birth control pills or ovulation inducers.