implantation bleeding?

I don't have a picture so I'm just going to describe what I had and get opinions. 
I'm a full week late for my period but I didn't ovulate until the 15th of this month I believe because of my discharge. On Saturday I had this strange pink bleeding kinda thing where it happened when I went pee and wiped but nothing more than that. It happened about 4 times and lasted 12 hours. 
Sorry for TMI! 
The pink blood at first had specs of brown in it, then by Sunday morning it was eggshell white discharge with pink in it and after that it didn't occur again. 
What should I do?