Back to work before maternity leave is over

I havent even had my son yet and im already thinking about getting back to work! I feel so bad but my rent cant wait😩 i want to be with my baby for as long as i can but i just cant my disability money just doesnt cut it. Any ladies have the same issue? Did anyone go back before their time was over? How did your baby and yourself deal with that separation? Breastfeeding , sleep schedule?