I think that if you're 100% sure on your dates then 36 weeks shouldn't be a big problem. Most doctors consider 37 weeks to be term anyway.
Is your midwife a bit of a naturalist? If she's against intervention then it's probably the act of medically focing labour that she's taking issue with, not the fact that the baby will be born at 36 weeks.
Esli, I am so sorry for your losses. I absolutely can not imagine what you've been through and how hard 2 still births and a miscarriage must have been. I really wish you all the best on you future pregnancies and hope you have an incredibly uneventful 36 weeks and a beautiful baby to bring home at the end of it.
Also, if I were in your shoes I would absolutely no allow a doctor to tell me to carry to term (and I couldn't imagine a good one would). I'd be waddling my huge pregnant butt into the hospital at 35 weeks 5 days, demand a c-section and refuse to leave without a healthy babe in arms.
Find a doctor willing to work with you and your situation.