Is this normal??

My son is about 10 months old I haven’t had a period and am still full-time breastfeeding…this morning I woke up to a period I did read it’s completely normal for some and not for others has anyone experienced being exclusively breastfeeding and start a period as well as had zero dips or issues with breastfeeding… he does blw some days and other days he just breastfeeds we go back and forth but he’s not much of a solid eater yet just when the mood strikes and I’m not weaning him everything has been the same … he don’t act like there’s difference he’s not eating more then usual so I know my milk hasn’t shortened yet … anyone with insite or experience??