Implantation bleeding? TMI

Alicia • Married: 02/06/2015 and TTC since: 03/10/2015 for #1
CD 17, one day I decide not to track I get this. I have never had mid cycle spotting before so it was definitely a surprise to see. Light pink, only there when I wipe. No discomfort accociated with it. Implantation bleeding or?