Maternity Leave Blues

I'm supposed to come back from maternity leave today. I was supposed to switch shifts with my husband so I would come in at 2:30 pm instead of 6 am (6 am is not going to work with breastfeeding an infant who is fussy in the evening). Everything has been approved but they will not switch us for 2 weeks. There is no way I can handle being to work at 6 am. I will not get any sleep. Hoping for a miracle...