Pink CM 5 days after BD. Could this be IB?

ttc33

We BD 5 days ago. I think I was right around O time but I didn’t Chart this month so I’m not sure. My boobs hurt bad and I’m super moody. I just went to the restroom and noticed light pink spotting. It wasn’t much at all and not like my period. Is this typical Implantation bleeding? I’ve never had it so I’m wondering if that’s what it is or maybe just AF showing up early.