Should I take leave earlier?

I am 32w1d and have a high risk pregnancy. I am a type one diabetic and now my blood pressure is causing issues. I have been placed on blood pressure medicine and I'm still spilling some protein in my urine. I have doctor's appointments three times a week now. I am a registered nurse and work 12 hour shifts, 48 hours a week. It's becoming increasingly difficult for me to work. I have my leave scheduled to start at 35 weeks because I am being induced at 37 weeks, but I don't know if I can keep going for another 3 weeks. I am allowed up to 16 weeks of maternity leave, and am using short term disability to get paid while I am off. Should I go a little earlier or stick it out?