Thanks for the replies, it has always been a fav name of mine- I like names that sound suitable at any age like this one does, some names I think are more suitable on older people or babies, or don't suit teenagers if you get my drift.

I am not a fan of giving a longer and shortening to a nickname, hence why DD is Tori and not Victoria, I did think about Caitlin, but just dont think it flows as well.
I have never come across a single child name Kate in the 5 school I have taught at over the past 7 years, so I am thinking I might be safe.
Now just need to convince DH.