Postpartum bleeding stopping and starting?

Sooo I am 7 weeks pp, vaginal delivery. My bleeding stopped about 2.5/3 weeks ago, and I haven’t bled since…until this past Wednesday. I spotted and then have bled a little since. Has this happened to anyone else? Was it just normal postpartum bleeding? I feel like there is no way it’s my period (I know there is a way, I just feel as though it’s highly unlikely). I am exclusively breastfeeding/pumping. With my first, my period came back at 6 months pp (we started combo breast milk/formula feeding at 4 months, when I returned to work). Tell me your experiences please!