Membrane sweep

Caitlin • 1st born May 2017, 2nd born May 2020, 3rd due May 2024 💗

I got a sweep this morning and of course hopeful that it works. I’ve been losing a decent amount of mucus since then and most of it is dark brown in color. Also a ton of back pain. Is this a good sign or just typical of a membrane sweep and doesn’t indicate labor at all?