My name is Ana, I am Hispanic so my parents and other Spanish speaking friends pronounce it Ana. But at school I pronounce it Ah-na which I like better than Anna. Normally if I am talking to someone who I probably won't speak to again I don't care how it is pronounced because it's for a short while. A lot of my relatives call me by my middle name (Berenice) or some people I know call me Ana Berenice with both of my names together.
My name is Ana and I just love it! I think the pronunciation is up to you, I introduce myself as An-na because that's how my parents always said it. The good thing about this name is that is unique and not very common.
This is my name, and I pronounce it AH-nah. Lots of people call me Anna, though. I just kind of stopped caring how they pronounced it after a while. My friends still get mad about it, though.