Perhaps, since right now you are the one with the job (and you are pregnant), you could mention to him about helping more around the house?
My father used to rarely help around the house, because he is not the sort of person who would realize anything needed to be done, but he's always jumped in without complaint when my mother asked him. Guys just don't see things the same way sometimes, and other times they're afraid to get in the way or do things wrong so they just don't do it.
My XABF, on the other hand, took great pride in
never doing anything around the house ("I have never even done a load of laundry my entire life! How
dare you demand that I help!"), so no guarantees, but it's worth a try?