Can a pregnant 16-year-old move out of her parents' home and live with the parents of the baby's father?
Not without permission from her parents or from the court.
Pregnancy does not confer any special privileges to a minor
including that of emancipation. If the parents object to the move
and the minor does so arbitrarily, any adult who aids the minor
child in leaving the custody of her parents can be held criminally
and civily accountable.