Vets will spay dogs when they're in heat, it does cost more $ though
As far as not neutering your male, you may want to let your hubby know, that once you use a male for breeding, they will constantly be marking everywhere, including inside your house. The females get pg when the bleeding is done, but, you do need to keep them separated, and if possible, I would take one or the other to a freinds or relatives house where there are no intact males |