Implantation bleeding

Lacey • I am 33. Married for Eight years. I am a dental hygienist. My husband works in industrial mechanics. We have a 2 year old little girl and are trying for baby #2
When would I expect to see implantation bleeding following ovulation. My husband and I are ttc and I am on my fourth cycle. I had some light pink bleeding today but my fertile window was just last week.