FTM TROUBLE. HELP

okay so I am three days overdue. I have had no contractions nothing to signal labour... but one thing is my pelvis bones are in so much pain... exspecially my tail bone. It's a mixture of pressure and soreness... when I move, let's say.. to get out of bed from laying down i groan from the pain. I feel like someone has whacked me in-between my legs with a baseball bat. what the fuck do I do??? I have an appointment on Thursday but this pain is dumb. and constant...ugh... am I just being a big weenie..?