Anyone feeling pressure ?

Ja

Currently 33 +4 weeks baby is head down. Out of nowhere i felt a strong push on the right side of my vagina. I can barely walk to the bathroom and i can’t sleep on that side at all.

My next appointment is Monday but not sure if i should wait till then or go to er? It doesn’t feel like I’m in early labor or anything. I just feel like it’s similar to a muscle pulled or charlie horse in my vaginal area. What should i do?