Dark brown spotting 2 months postpartum - my period?

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Hello all, I'm currently 7.5 weeks postpartum and exclusively breastfeeding. I stopped my after birth bleeding/lochia at 6 weeks pp but today at 7.5 weeks pp i suddenly see some dark brown spotting, old blood?

Does anyone know if this could be my period, or something else? I'm just confused because the bleeding doesn't look like the usual more vibrant red period spotting

Thanks for any insight/experience!