Wtf is this(period question)

So I️ got my period maybe 2-3weeks ago and I️ was having the usual white discharge, but now I️ have this brown discharge? Wtf is I️t. I️ always get I️t sometimes its so weird, this one time I️ had I️t for the whole month with no period. But that hasn’t happened in a while. Can anyone explain what this is? I️t legit just looks like brown blood