Missed Period.

Okay ladies,

Its been about 2 years since i have been on here when i was pregnant with my ds. I forgot how much i missed this website. Anyways. I was Supposed to start my period on this past 22nd. Today is the 27th and still havent gotten it. No signs of it coming what so ever. I did some research and seen its possible either stress has put it off (not really had any) or Im taking the HPT to early, Which is causing the first two i have taken to be negative? Thoughts please? and TMI: but i am discharging.. which i did when i was pregnant, except not near as bad. Input Please!!