Pelvic prolapse

This Is going to sound werid and I unsure on what to do, im 27 weeks and lately I've been feeling alot of pressure In my vagina. So today I braved and had a look with a mirror, and honestly its so embarrassing but it looks like something is coming out of my vagina. Do I need to call maternity triage, midwife or doctors?

If so what would happen to me and the baby? Would I need to have a C-section, would I need to be included?

Sorry I know some people would think I have common sense and know what to do, but honestly I've never had this before with my previous child.