Name craziness

So my SO picked out the name and I liked it when he picked it out but the more I hear it the more I'm starting to hate it. I didn't want to tell anyone the name for this very reason and he told his whole family. The name is Evelynn which was his great great grandmothers name and I think it's beautiful I just don't see myself naming my daughter that. I told him I wanted to Change it and now it's started a huge fight. Any advice I honestly have no clue what to do anymore