TMI question. UPDATE

I had my period this month and it ended Saturday Ever since then I have had brown discharge. Like a lot, my DH and I had sex and it was EVERYWHERE like blood would be on your period, and I can feel it come out during the day. And it happens when I wipe after peeing. It does NOT happen constantly all day just every once and a while but it’s been doing it every day since my period. I thought it was old blood at first but its been a while so I figured it would have stopped?

Ideas of what’s going on?

I am not on BC, I have my tubes tied.

Also I didn’t think periods were brown?