Switching from crib to toddler bed HELP!

Sabrina

So I’m 18w1d and I have a 2yo and I want to get him switched to a bed before the baby is born. I plan to sleep in the room with him either on the floor or on a low blow up bed in this process but i was wondering other mamas how did U do this??? My fiancé works 8-8 6 days a week so I’m by myself doing this I’m so scared n nervous to start this process plz any advise tips or tricks r very much welcome! Thank u all in advance!