Yeah, don't get a dog now, it's too late. There is a lot of evidence to support the idea that living with a well mannered dog is really great for kids on many levels (immune, psychology, etc). But raising a puppy is a whole order of magnitude of stress on its own, and puppies can be very difficult to train and take years to settle down. Having a 3 or 4 year old dog + a baby is great. Having a puppy and a baby at the same time is like having twins (or worse).
My partner and I did this by accident. We were having infertility struggles and our old dog died, so we adopted a 5 month old puppy. A year later we finally got pregnant. Now we have a 2 and half year old dog and a 1 year old baby and things are just settling down to a manageable level of stress. We just about lost our minds trying to manage both and the puppy definitely didn't get the attention he needed. I think we'll all be okay in the long run, and the baby adores the dog. But if we were to do it again we would not have both puppy and baby at the same time.
My partner and I did this by accident. We were having infertility struggles and our old dog died, so we adopted a 5 month old puppy. A year later we finally got pregnant. Now we have a 2 and half year old dog and a 1 year old baby and things are just settling down to a manageable level of stress. We just about lost our minds trying to manage both and the puppy definitely didn't get the attention he needed. I think we'll all be okay in the long run, and the baby adores the dog. But if we were to do it again we would not have both puppy and baby at the same time.