Spotting after ovulation?

Marie • Have Pey 9/08, 1 angel baby 2011,and TTC again
I had my ovulation from July 28th to the 31st. I haven't used any ovulation tests since I've only been trying for 2 months. 
​Today (August 3rd) I spotted a little pink and had white CM
​Any one have any insights on this?! I'm honestly hoping that it's implantation spotting?!