Postpartum cramping/light spotting

I’m 9 weeks postpartum. Had my second c section. I am EBF my baby & For the last 2 weeks or so I have had occasional light cramping & thought my period was returning. Each time tho it would go away for even a couple days at a time sometimes. Then 4 days ago I had light pink discharge once when I wiped. It also went away for a couple days then last night I had the same pinkish discharge & again it went away. I have only had sex a few times with my husband since being cleared at 6 weeks. All of which we used protection. Is this my menstrual cycle returning or is this just my uterus further settling back down to size? My period didn’t return for 8 months with my first when I EBF. I’ve had zero postpartum complications. I did have lochia for 6 or so weeks which my OB said was not uncommon when breastfeeding as it can sort of delay it ending she said. But it went away for over a week or two before I started having this random light cramping & light spotting. Thanks in advance!