My OH wants to get a dog badly, we were meant to get one (a boxer we want LOL) when Brody had grown a bit, but now we have another on the way it's on hold again.
Personally, from a selfish point of view, I don't want one till the new baby is at least 1....OH might put the pressure on though as he's a real dog person.
Not only is a big dog likely to knock a baby over and stuff, I just can't be doing with all the wee on the carpet, training, barking, poo all over the back garden (if you're lucky, otherwise thats on the carpet too)
A puppy will chew the baby toys, leave hair and dirt and poo all over the floor when baby is learning how to crawl and has their face in the carpet most of the day.
I really want a dog, but it's not realistic for us at the moment.
What I would recommend, which is what I did...my friend went on holiday when Brody was about 4 months old, and we looked after her dog...only a King Charles Spaniel, but she was a puppy. it really opened my eyes to how much work a dog is, especially a young dog. She was a royal pain in the ass!