My baby is 3 months old and I want to change her name!

Elizabeth
I'm not happy with my choice. It took me 10 days after she was born to decide and it still doesn't feel right. 
I know that's really weird but it just doesn't suit her and I still find it awkward when I say it
She has 2 brothers and I've always liked their names, but I can't get used to her name, which is Anna.  I like Adriana and Beatrice better. I think. 
Should I keep it? Will I get used to it? Is something wrong with it? My husband thinks I'm crazy. My mother thinks it's a sign of PPD! I've never been so indecisive before!
We have a big traditional family and are having her baptism in Paris in just a few days, so it's a challenge to change and I would have to be really sure if my choice if I make a run for it! 

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