Membrane sweep question

Lydia

So I had a membrane sweep late afternoon yesterday and had some contractions. But nothing consistent and they went away (as far as I know) when I went to bed. This morning I when I woke up I had some brownish, thicker than regular discharge. Is it normal spotting from the sweep or a bit of my mucus plug? I never had anything like this with my first! My whole mucous plug/bloody show came when I was in active labor!