god help that child - there is no telling damage done.  egg donor mom's chin felt sore after bumping the baby's head into it?  bumping into the chin so hard as to cause a skull fracture? baby skulls are soft, still malleable?  like green wood?  so how hard do you have to hit that skull to cause an actual break?
   the woman who gave birth to that child needs help and lots of it.  let the help start in prison, through parole and on.  
   where is this woman's family?  single mom?   is she a fully functional, stable person?  uncomfortable thought, but her IQ?   there are times when the mother is considered to be "slow"  with an IQ in the 60s, 70s, ... - these women never grasped there was help to be had in the "outside" world.....