I believe the law was constructed to restrict based on method rather than the term of pregnancy because Planned Parenthood v. Casey overturned such laws.
Unfortunately there is a giant loophole in the decision:
>In addition, if intact D&E is truly necessary in some circumstances, a prior injection to kill the fetus allows a doctor to perform the procedure, given that the Act’s prohibition only applies to the delivery of “a living fetus,”<
So all the doctor has to do is give the baby a lethal injection prior to the procedure. At least a trifle more humane than tearing a live baby limb from limb, but it will hardly put a dent in the abortion mills.