Need help please!

I'm 38+4, I have had really bad lower back pain for the past 4 days. At about 4pm I started getting really bad pains in my pelvic area. Now it's 11:30, no fluid but I have lost big pieces of my mucus plug no bloody show and I know that doesn't nessecarily mean anything but the pain is worse now bringing me to tears. At my ob appt on Friday I was 2cm dialated 80% effaced. What should I do?! :(