What a beautiful, bittersweet story. I'm so sorry about your sister, but I'm happy she was able to hold on long enough to meet her miracle nephew.
I hope your incision and breastfeeding issues work themselves out quickly. I know how tough those breastfeeding issues can be. I had issues with two of my DSs. The first never quite got the hang of latching, so I pumped exclusively for three months. That's about all I could handle as I was going insane! My second DS had the opposite problem--a ferocious latch and I ended up with huge bleeding cracks, ouch! After a month, though, his latch got better or my nipples toughened up, not sure which!
Enjoy your precious Patrick. Love to you and your family.