kid no. 2 did something to my tail bone on his way out- his face was the opposite way from normal {can't remember if face up or down}.
anyway his head bruised or broke my tail bone.

The pressure from sitting or getting up and then sitting back down with that was way worse than the delivery!

I didn't go to the doc or even mention it to anyone , til after it quit hurting - then I told hubby & mom.

But in your case I think at least calling your dr and telling him would be a good idea. Better to follow this up now than to wait.