how to stop bed-sharing

I don't want hate on this post from people who dont believe in bed sharing, so just dont waste your time.

my son has been sleeping with me since he came home from the hospital and now im trying to move him to his crib... he's also 8 1/2 months and starting to develop separation anxiety so if he realizes he's in his bed alone, he will scream and scream at the top of his lungs. idk what to do.