Part of me really wants to work up until I have the baby, but then part of me wants at least a week…

Part of me really wants to work up until I have the baby, but then part of me wants at least a week or two before to rest and prepare before the madness.. Will doctors write you out for a couple weeks before without any medical issues? I have to be written out by the doctor so my STD kicks in and I get paid. I could leave now without pay but I don't really have that option..