38 weeks and 6 days with spotting

So every time I wipe after I go pee, since yesterday there’s been light red on the toilet paper. I haven’t lost my mucus plug yet, and my water hasn’t broken. I was in the hospital 2 days ago with contractions but I was only dilated 3cm and they made me walk 1 hour and 30 min and checked me again and was still at 3cm so they sent me home. When they checked if I was dilated it hurt, and a lot of pressure. So could that be the reason I’m spotting when I wipe, or should I go back to the hospital??