Contractions / mucous

I have been having back contractions for 3 days. All last night they we ere about 5 minutes apart and lasting 50sec. To 1 min.

I am also concerned out the color of my mucous. Every time I go to the bathroom and wipe there is mucous everywhere but it seems to be a yellowish color and I swore it had a green tint to it. One Dr told me don't worry about it. I don't trust it. Green is usually a sign of infection. I am worried and 3 days past my due date.