My opinion is BSN! I'm searching for jobs right now, and most that I'm seeing require a BSN, especially crit care positions, and for a good reason. I believe it will save you time in the long-run, as opposed to doing an ADN program, working, then doing a RN-BSN program. You want to get that critical care experience as soon as possible, but I'm guessing they want that experience as a BSN, since that's what they require to apply. I'm looking towards CRNA too, so all of this stuff has crossed my mind as well! Best of luck to you, and enjoy your little one once he/she arrives :)