Unusual discharge

Kayla

This will be month 2 that I’ve had dark brown discharge after my period. It doesn’t end a few days after, it goes from one period to the start of the next. It’s stayed constant color with a little red in it from time to time. Should I be concerned with infection or a miscarriage? I’ve never had discharge that is dark brown and lasted from the end of one period to the start of the next. I need help and opinions!😰