Light period questions

First I'll start by saying that my periods are ALWAYS heavy every single day but the last day of af. This month my period was heavy for the first two days and the last 4 I barley bled at all. Seemed off to me.... Then two days after my period ended I went to the bathroom and when I wiped I had a very pink discharge. It only happened the one time and that has never happened to me. I'm wondering if anyone would have an explanation for this. Sorry for the long post.