She's NOT going to help me install glue down engineered hardwood throughout the house (I won't let her help anyways ). Is the glue fumes harmful in any way? I was thinking she could visit her dad on weekends while I go from room to room and do the floors, but how long does the glue fumes linger?

Different glues can have different properties. You would need to read the MSDS (Material Data Safety Sheet) for a particular product and/or speak with the manufacturer.

I kicked my pregnant wife completely out of the house when I painted the interior. Although latex paint fumes are considered safe by many, there was NO WAY I was going to take any sort of risk with an unborn child.

Nice choice of words...

aha, a context mongrel!