Hi tom, it does sound as if your dogs are playing up because they feel a little jealous/neglected of your new arrival (congratulations) and therefore are trying to get your attention they are playing up ... when i has my son and daughter i'd allow my dogs to continue as normal as part of the family, but i did kept an eye on them when around the kids for the first couple of months just to make sure.
Now my 2x jrt's can often be found by my sons side and who are very protective of both my kids.
It's as people say, you know your own animal. ! atb