Overactive fetus near due date?

Koda
Tomorrow is my due date and for the past few days my baby has been extremely, extremely active. Constantly moving his legs around, and when he's not moving them he's at least pushing on me at all times. My belly is honestly sore from all the abuse. 
Has this happened for anyone else?? Just a few days ago he was not at all this active. He would give me a few gentle kicks here and there besides some form of major movement maybe every half hour. But now it's major movement after major movement every few minutes...
I am exhausted and just want him to calm down. I want to know why he's doing this all of a sudden. I'm not exactly concerned though. I figure the more exercise he can get, the better.
I don't think I'll have a problem with my water not breaking. He's basically trying to claw his way out at this point.