Help! Spotting a few days after ovulation?

Coco
Could this be implant bleeding? I went of birth control in May and since then have had super irregular periods. I'm currently on cycle day 63!!! I've been taking ovulation tests from clearblue advanced  since we are TTC. I had 10 days of high fertility and then got peak ovulation on Monday. Today I have some spotting. Any insight would really be appreciated!!