Seems to me the bed scene where Peter was looking for an apartment was added just so Olivia can plug in the word 'nursery'.
In this timeline Walter owns the house close to campus; it was mentioned in one of the first episodes of this season.
Walter still lives in the lab; Peter lives in the (rather big) house; why on earth would they look for a place (with a nursery) in an obscure list of suburbs? What's wrong with the house? If there was anything wrong with the house, at the least there should have been a fleeing comment about it - somewhere, sometime. Plus, they didn't seem to have any qualms about it in the original timeline (which is the only one both remember).
There surely must be another, more creative way to suggest Olivia's newfound powers come from a baby.
What do you think?