39 weeks still working

So, it feels like my ribs are on fire and someone is stabbing me in them every time I sit down. I'm pretty sure they are cracked but they don't hurt when I stand or lay down. I work at a desk sitting down everyday. I am in excruciating pain, Tylenol does nothing. We do need the money but we will still be able to pay our bills if I leave now. My husband hasn't even suggested that maybe I should stop working, he basically says I have to keep working. I know he would be really mad if I took off. I only have 2 weeks leave at work and I would be wasting the time with my daughter. I don't even want to go back in two weeks. I want to breastfeed and bond with my daughter. Every woman I've talked with says two weeks isn't enough. I really don't know what to do.