behind on a couple bills and could use some help before they add late fees

currently under someone else’s lease. the past 2 month have been paying $1200 and month for rent an they decided just Sunday to inform me on the May 1st they want me to pay whole rent at $1790. I don’t get paid until the 8th. I’ve tried negotiating but they will not budge and I have a 1 y/o which put me in a tough position since I can not offer to lose housing