My wife is pregnant with another man's child

If you want to endure the pain of your wife's cheating then don't leave her. But I tell you, this won't be easy. Then if you want your wife to stay with you then your wife should cut ties with her child's father. For your peace of mind. But if they won't then here's your options: 1. Leave your wife. And if you both have your own child/children, then bring them with you. 2. Leave your wife and file for adultery charges.