Well I am BFing my 2nd, after 11 months BF months for the first, so I am a bit biased here....
BUT
When I was first pregnant although I wanted to bf very much, I was a bit creeped out by it tbh. I knew that was what boobs are supposed to be for (rather than getting into clubs for free and getting free drinks, which is what I had been using them for in the past) but I had always thought of them as, well, sex things, not feeding things.
I was worried I would feel weird about it, also that I might not be able to manage it and I didn't want to set myself up to fail. (Not big on failure). So, I just read a bit about it, and a bit about formula, and got some bottles/steriliser and an expresser, also a pack of formala just in case, and then when he was born I just gave it a go. And NEVER looked back! . All the worries about it being, you know, a bit 'odd' - they just weren't there. My whole being had just switched to 'baby' and it was the most normal thing in the world to do. Luckily, he took to it very well and my family/DH were also supportive. I now quite happily whop them out in public, (sod discreet!) and feed whenever/wherever the mood takes him.
I wouldn't worry about it. If you get asked, simply say something like 'I'll have to wait and see' or equally non-committal. Get yourself some information - internet is great, health visitor/midwives should be (but DO vary) and get any equipment you might need.
Then when the time comes, if it feels right, do it. It's worth trying, and you might surprise yourself!
Oh, and congratulations!!