As I thought - so many different opinions! I don't know it from Bread (showing my age!).
I first saw it in a book many years ago and had never heard of it so in my head it's pronounced AYVE-LIN (shortened to Ava) as that's how I read it at the time BUT I've since looked it up and apparently it is more like avva-lin which I'm not so much a fan of.
Wondering if I can just choose how its pronounced BUT also don't want to subject baby to a life of people pronouncing their name wrong so i think regretfully its a no-go!