Pink spotting few days after period?

Hey ladies. Need an advice. My husband and I have been ttc for 5 months now, my period ended 2 days ago, no bleeding since. We had intercourses last night and the night before and today I got pink discharge? It never happened before. When my period is ending it’s usually brown but like I said there was nothing past two days. What could it be? Could it be that I got pregnant right before my period and having implantation bleeding now?