Name frustration

So not sure if I should be this annoyed but my cousin just had her baby which was suppose to be due after me. She had her baby already and I am still super pregnant. We just found out that she named her a name that is 1 letter different from what we were gonna name our baby. She is named Allie and we were gonna name ours ellie. Which everyone knew that we had 2 names in mind. Now we are stuck with the one name that I really didn't like. I just don't feel like I can name ours something so close.