Confessions: My nosy neighbour warned me of my husband’s infidelity

For some time now, my husband has been distant and cold to me. He has been withdrawn which is totally out of his character. Now I think the househelp is pregnant although she does not accept it when I ask. My neighbour once warned that there seemed to be something going on between them but I dismissed her since she is the queen of gossip and knows everything about everyone. However, I now suspect the pregnancy is his and have no idea what to do more so because I don’t want anyone to know about this. This girl is from my village and this can ruin many things for me if she is indeed pregnant. If she is, I would want her to go home quietly and leave my family in peace. Please tell me what to do. He is really not the man I married.