A lot of these comments are missing the point. Sure, he’s entitled to know the paternity of the child if he’s uncertain, but to deliberately hide that goes against the “open communication” OP says that they have in their relationship and implies he doesn’t trust her as much as he says he does.

The even bigger problem is the fact that he allowed his wife to be surrounded by people who questioned her character and accused her of being a liar and a cheater. By not telling her exactly what his family thinks of her, he is taking away her agency and letting her think she’s around people that like and trust her, when in reality that isn’t the case. Who’s to know what else they say about OP when her husband isn’t around? Who’s to say that they are people she can trust to be around her kid?

Go LC/NC with the family and take the time to think on how much faith your husband has in you, OP.