Go home and rest. I admire your work ethic, but given you've had health issues already, just rest. I'd finish this week, the earlier the better. The company will cope. They'd have to cope if bub decided to come tonight, so they can cope regardless. It's better for bub if you're rested.

I had planned to work to 36weeks with DS1 but was in so much pain I finished at 32 weeks and he arrived at 35 weeks.