I need advice..

Kennedy • Married to my soulmate since 7.4.2020!💍💞 We have a 4 year old son, who took a year and a half to conceive! We are expecting baby girl March 11th 2021 after 2 1/2 years of ttc with fertility treatments 💖
So me and my husband are trying to conceive.. Been trying for 10 months. And hopefully when we do conceive we both really want a baby girl. But as always you cant pick what you want. Which I don't have a problem with. I will love my child no matter what. But my husband.. Is another story. As I said we both want a girl. He said hes scared of having a little boy .. Because his dad was never in his life when he was little. His dad used to beat and abuse his mom.. While she was pregnant with my husband. And my husbands half brother raped him.. Multiple times when he was younger.. And that he doenst want a boy..because of that. He said he just wouldn't know what to do as a father of a son.. And that he will be scared to even touch our child. And I am scared whenever we do conceive that if its a boy that he will withdraw.. And not want anything to do with our child.. And I dont want this to happen.. I want him to know its okay and that its our child and we both know in our hearts we would never do our child wrong. What can I tell him that will make him feel better about the situation.. I need advice