Is it an awful idea to name my baby something that sounds similar to a family pets name?

I have been in love with the name Stella for ages, and would have loved to give the name to my daughter (who should be born within the next week) But my concern with it is, that we have gotten a cat within the past year that my sister named Bella. I'm worried that a lot of potential confusion could occur because of how similar sounding the names are, but at the same time I'm not sure i should let a cats name deter me from choosing the name I like the most... any advice? (I've also already considered other variants of the name instead, like Estelle, but they just don't sit right with me the way Stella does.)