L.N.
Hi T.~
Well, I'm certainly not a fan of co-sleeping, but I'm also not a fan of letting babies cry it out! In your case it sounds like insecurity and with the big changes he is going through, he just needs your time when you can give it...which is at bedtime. I would say let him sleep with you (I can hear all my friends gasping with surprise...lol)! He needs to be close to you and it is temporary. Any changes can be BIG for little ones and his world has been turned upside-down. If he needs to sleep with mom for some reassurance, then that certainly outweighs anything else. Once things calm down for him, the switch to the crib may actually be easier.
Good luck and kudos on the degree!!!
~L.