What are the chances?

Corina • 👶6-29-15👶 💍7-21-17💍 💑4-22-13💑

Is it possible for implementation to happen just 5 days after ovulation? I ovulated on 10-08-18 and it’s now 10-14-18 and that’s 6 days later, yesterday I had some light cramps and like two spots of pinkish brownish color discharge, does that mean I had early implantation spotting?