Returning to work after maternity leave

My maternity leave is unexpectedly getting cut two months short… I expected to take 8-9 months but I received a promotion while out and now I must return to work in 2 weeks. I am distraught.. the promotion should be good news… and in the long run it is good for my family… but myself nor my baby are anywhere near ready for me to go back. My baby is breastfeed and will not take a bottle or pacifier. I also do not know if I will need to return to working days or overnights.. which is only adding to my stress as I have no idea how my husband will get my baby to sleep if I must return and work nights. I wish I could quit my job but that is not an option for our family.

Any advice appreciated or similar experiences