I've had twins elective c(38 weeks)and although 38 weeks is meant to be when twins are "ready" compared to 40 weeks with singletons, I can honestly say mine could have done with another week or two. Dd had reflux and ds2 had a faulty suck and jaundice. Both were quite normal birth weights 6Ibs and 5Ibs but if they had got to 7Ib and 6Ib the early days would have been so much less traumatic (very sleepy unresponsive babies that needed a lot of feeding and prodding for two weeks)
Please look after yourself, and inform your dh about the benefits of having a rest before giving birth and hanging on till at least 38 if the babies want to!
Meanwhile, how are you preparing for the actual days after the birth? changing tables upstairs and downstairs. Lots of ready meals. Camp bed in sitting room so someone gets a rest sometimes if you've been up all night. Paternity leave..how is that going to go..what is your dh going to do to help then?
I think twin pregnancys can be so exhausting that you just want the babies out and then you forget what is going to be like with two screaming little mites tugging at your heart strings. A sling for both parents, a really good comfortable to push double buggy or even twin pram is essential, and so many people don't factor this in, thinking it will be fine, they will make it up as they go along. Second hand is fine, just get the basics right before they are born.
It really is nothing like having a singleton, I had a toddler at the same time and wasn't prepared for how exhausting it would be dealing with twins, although my toddler had been a baby very recently and I could remember everything about early days with a baby etc/breastfeeding etc.
Impress on your dh right now how helpful he is going to be, tell him you know how supportive he is going to be, and explain what it is you need before the arguments start (after the birth) So it might be, I need you to take a baby first thing and give your ds breakfast every morning before work. Or I will need you to bring me a plate of sandwiches when I am sittingon the sofa back from hospital feeding (breast or bottle) Show confidence in him and he might surprise you.
This is his first baby[ies] presumably so you need to lay it on thick what a helpful handson dad he is going to be and be very specific.