First of all, you may deliver any time after 38 weeks. Only a small percent of people will deliver exactly on the due date. Going back to China until just a few days before the due date is too risky unless he is not interested in attending his own child's delivery.
Second of all, it is his baby. I can not believe a dad would like to miss his child's birth. If he want his child to treat him the same way as he is treating his parents, he should know that this is probably the most important moment of his child's life, Dad should be with his wife and newborn child.
If he really cares he should not plan this way.
