My period is two weeks late i feel gasy and i am having a lot of milky white discharge and breast are a little tender but i got a bfn on hpt why?

Don't know when: You took the pregnancy test. With standard home pregnancy tests- wait until period is missed to take it. You can repeat in a week with a first morning void if still no period. Reasons for missed/late periods: low body weight, obesity, marked weight ^ or v, over-exercise, endurance athletics, breast-feeding, ^ stress, illness, eating disorders (bulimia or anorexia), anovulatory cycle (no egg >.