Implantation bleeding.

Has anyone had implantation bleeding 5 days after intercourse? I have read it could be too soon but possible in some cases. My husband and I have been trying to conceive for two years now and I'm really hoping this could be it. We were intimate on one of the days I was ovulating, the 4th of June, then on the 9th I had a little spotting. It was very light and not red but like a light pink. And I never bleed between cycles. I really want to know if it's possible I'm pregnant.