Now is a good time to do it. She more than likely wont mess with them or pull on them at this age. I was wanting to get our dds done at about that age, but we didn't have money at the time so it still hasn't gotten done and she's 19 months now.
I used to work for a family practice and the doctor used to try to talk parents out of getting their ears pierced young.
Sometimes when the ear grows, the hole will grow when they get it done real young. If you do decide have it done, do it at the doctors office or at a tattoo/piercing place. They sterilize and are trained better then a place at the mall.
If you want to get them pierced, now is the best time before she pulls on them. It's your decision and no one else's if you want to pierce her ears as a baby. When she gets older and decides she doesn't like them all she has to do is not wear earrings. She won't be self conscious either, not like they deform her ears, just leave small holes.