I hope that he gets so used to being around bub over the next two weeks that he really feels a hole when he leaves. A huge hole.
As for schedule or accommodating his visits, it's only 2 more weeks. Do what makes you feel best. (My therapist always said that I can know what I want by feeling what my body is telling me. If I can feel any anger or pain in how a sitch is going, I need to speak up. She probably said that because I can overlook things, but this might help you know what you want in the visitation stuff.)
I am not looking forward to vaccinations. Our appt is on the 13th. Poor little babies! I think you can ask WH to drive... makes sense, really.