Already decided I am going to ask my dr on Monday to start May leav 6w rather than 4w before my due…

Already decided I am going to ask my dr on Monday to start May leav 6w rather than 4w before my due date. Now just debating if I want to blow 40h of vacation hours so I get off work 7w before. I am struggling so hard with working graveyard and trying to stick to this meal schedule for my gestational diabetes and my son still waking up throughout the damn night when I am not in bed. Last night I didn’t go to bed until almost 7pm and woke up at 11:40 for work. I am so beyond exhausted and don’t think this is good for me or my daughter. But having the extra two weeks (instead of one) at the end of my 12w maternity leave could be nice too.. so I am torn..