Whoa Mama.
Wow. Congrats!
As far as work. That's a toughy. I did the nocturnal shift for a hotel for about a year. I gained a bunch of weight, developed high blood pressure, and my sleep patterns were way off. But since the baby is gonna be keeping you up anyway...it may work.
Good luck. I know how hard it is to work and raise a family! I'll be praying for ya.
Rachel