Long, but please help.

Haley
Okay! The past few weeks have been crazy for me! I swore I was having prepregnancy symptoms. But let me give you all the details that have me so confused. Two months ago, my SO and I moved in with a new female roommate, and naturally my menstral cycle was late and lasted two days longer. I usually start the first of the month, give or take a day, and my period lasts three days. (I'm lucky, I know!) So, last month my period started in the seventh, still trying to even out from the month before, and I was expected to ovulate on the 18. I am now four days late on my period and I've taken 4 hpts. All negative. (Two tests three days before I was expected to start, one test on the day of my missed period and one this morning.) I just noticed as I wiped, that I had pink discharge, which would resemble implantation bleeding. I don't know if the symptoms in having now are from pregnancy or if my period wants to come REALLY late. I typically only have cramping on my period and that's it! Nothing in the weeks between, and these past few weeks have put me through h*** as far as nausea, sensitive breasts, leukorrhea, sleepiness, you name it I have it, Is it possible that this new living sitchuation not only messed up my period, but also affected my ovulation? If I miscalculated my ovulation, could be implantation bleeding? Or what? Am I holding on to hope too much that I should just let it go? I'm beyond overwhelmed, and my SO has accepted the negative tests, and I just CAN NOT. Please don't just read this and ignore, please comment, even if it is to just tell me I'm crazy. Haha.