I think my husband is molesting my 3-months-old daughter

From a female reader

I noticed my husband has been molesting my 3months old daughter. I've been suspecting it but it's this evening I confirmed it because I saw him trying to make her suck his breast so immediately I came out from the bathroom he paused. I entered to get something, came out and saw him trying to make my daughter suck his dick. He did as if he was trying to make her get up. I saw his penis out from one side of his boxers. And it was wet. I collected my child and he quickly adjusted his penis. I'm so confused right now. My heart is heavy. What do l do?