Should I change the name?

Ok this maybe a bit long but I'm pregnant and for many years I always had my heart set on Liam if it was a boy and my hubby agreed.. Well now my cousin has a very serious boyfriend they are talking about starting a family within the next year.. Her boyfriends name is Liam which turns out to also be my hubby's friend.. They met through us a few years back.. Ok well I just confirmed that I'm having a boy and I've already announced that his name will be Liam.. She seems happy but at the same time she keeps telling me I might change my mind and not to go embroidering anything.. I feel like secretly she trying to change my mind by suggesting other names and doesn't want me to use the name cause she also wants to use it for when she starts her family with her bf.. I feel bad but I've had this name set before they started dating I've known my hubby for over a decade and this is something we had decided on when we first talked about kids.. Should I change the name even though she isn't even pregnant or planing on ttc to conceive for another year?