Is hoping for twins bad?

So my husband has informed me that if this baby is a girl we are don't making babies because we already have a boy... mind you I didn't tell him that isn't only his decision. But that being said twins do run in my family and I know that only a little bit more of a chance to conceive twins but I'm really Hoping I did... Because I want at least 3 children and then this way maybe we both win... Idk is it wrong of my to pray to have twins, this isn't the only reason I want twins. I would really like to experience it, my grandma was a twin, my dad was a twin, and I was supposed to be but my mom lost my sister during her pregnancy.. I just think it would be nice to experience it since it is apart of my genealogy. What do you all think? Is it silly to want this?