You can ask your husband to honor your views on this, but you have no legal rights to compel him to do so. He is part of a "household" and it is normal and reasonable in a 2-adult household to allocate between the responsible adults the necessary matters such as doctor appointments, school conferences, chauffeuring kids around, etc. Particularly if he is employed, he is entitled to manage his schedule and time in the best way he can and reliance on his wife (not a girlfriend) is reasonable conduct on his part. You have no veto powers in his decisions as to how to best meet his responsibilities and commitments.
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