Have no suggestions about the breastfeeding as I knew Stef17 would be a great person to advise you. But just wanted to wish you the biggest congrats on your twins. How exciting for you! Do you know the sexes yet?
Keeping you in my prayers that all goes well. By the way I was horribly constipated with each of my pregnancies. I had to eat salads every day to avoid getting too backed up. But I was in remission at the time and hadn't had any surgeries yet, so could still eat salads in those days. Could you ask the doc if stool softners are allowed? Those help me immensley now with my c. Or maybe he would let you use Miralax or Senekot. While pregnant I used Ducolax suppositories and they helped some too. Hugs!