Pressure Where?!?

FYI this might be a bit gross. So I’m about to turn 28 weeks (Yay), and I’ve noticed over the past week or so, I’ve felt these jolts of pain in my rectum. They didn’t occur during bathroom trips and I haven’t had any issue with going this entire pregnancy, so I knew it wasn’t constipation. Now I’m feeling pressure now in my rectum off and on even when laying down and im low key scared 😱. Anyone else experience this?