Faint line??

I'm beginning to lose hope. My last period started February 17th. I usually have regular 28 day cycles and have never skipped a period before. My period should have started March 17th. I had pink discharge for about 4-6 hours on April 1st and nothing since. I was hoping that I may have ovulated really late and that maybe the pink discharge was implantation bleeding. If so I feel like I should be getting positives by now. Thoughts???