First period after pregnancy

I gave birth 5 weeks ago and am breastfeeding/supplementing. The last couple of days I noticed my bleeding has significantly slowed down, so where I almost didn’t need panty liners. But yesterday I had some bright red blood and today I have cramping. But just now as I was breastfeeding I felt a gush of blood and when I went to the bathroom there was a clot and some more blood that came out (nothing major. But def more than I’ve been having lately). Does this sound like it could be the start of my period coming back?