Early stages of Donor Egg

Hey everyone! My SO and I are in the early stages of possibly using a donor egg. I’m 39 yrs old (will be 40 in Oct) and he is 37. We have never tried IUI or IVF, after TTC for 6 mos we got ourselves tested and I have low AMH and he has low motility and a slightly low sperm count. We are discussing trying IUI for 1 cycle while we are going through the process of picking a donor. But honestly, I’m not very hopeful it would take. I’m also terrified that it would take but I would either not carry to term or the child might be born with a disability.

So that’s our story as it stands right now. Does anyone have any advice for us as we start this process? Anything we should be asking or looking out for? No one ever knows what they don’t know and I want to do this armed with the best information out there. Thanks!!