Labor?

37 + 5, I couldn’t sleep last night because my back pain and pressure was so terrible. My mom thinks it might be back labor since it doesn’t let up but besides being crampy in front I don’t have regular contractions. I do have so much pressure on my bum that I feel like I need to take a massive poo, but I’ve been going regularly since the pain started with no relief. I’ve consistently lost what I think are bits of my mucus plus since yesterday (the first couple chunks were tinged brown but the last few have been clear/white. I have an appointment in just a few hours, but does anyone have similar labor stories to this?

Update: went in to my appointment and was dilated to a 2 with back labor. My doctor said it was latent labor and my babe could be here within the week!