E.P.
Congratulations on your pregnancy! So sorry about your loss this year too. I'm sure your instincts as a mom are very good but the loss, among other things... is a terrible blow to your confidence as a mom. I'm sure there is so much that you know about babies and raising them - as much as any other mom out here! And you keep asking good questions so don't think you are clueless. Those that are clueless are the ones that don't even know what to ask!
Regarding co-sleeping - sorry, don't know much about the nest. With both of my children, it was just a personal preference to have them in a bassinet in my room, early on, then move them to a crib. I guess that short walk to the crib helped me be a little more alert when it was time to take care of my baby in the middle of the night because I actually had to get up and do something, rather than having the baby next to me. And I could hear both of my children because our rooms were so close. I did like being in bed with my children from time to time, but it wasn't an everyday thing and I didn't want to give up that close time with my husband. Don't know if your husband may be changing shifts any time soon so it's something to think about. This is just my preference and may not work for you, though. All the best for you, this pregnancy - hope it goes smoothly for you!