Dark brown discharge??

Grace. • 👼🏼💕💙 // Keagan 1/31/2020 🌈❤️ // Ethan 9/14/2021 ☀️💚

I’m almost 11 wks postpartum and I started getting my period back at exactly 4 wks postpartum and now my period isn’t due for another week and I’m having dark brown discharge is this normal or should I be concerned ?? 😬