First period 6.5w postpartum? [ns]

FTM and EBF, and I started bleeding again after not bleeding for 2 weeks. I’ll be 7 weeks postpartum on the 18th. Bleeding started yesterday early in the morning, lessened through the day and stopped in the evening. It’s now 4pm and I just started bleeding again. Does this sound like my period is back, or something else? My 6 week checkup is this week so I’ll talk to my doctor about it when I see her, just wondering if anyone else got their period this early?

Thanks for any input!