We put DS in his first toddler bed about 2 weeks ago. He's 2 years and 2 months old. First few nights he took maybe 10minutes or so to stay in bed but LOVED it on the whole. He had new bedding he adores, all his cuddly toys etc. Now though he's a nightmare taking us about 1.5hours of up and down the stairs while he gets out of bed and onto the landing. The whole time he wants me, made worse as I am 38 weeks pregnant and just cannot go back and forth anymore. DH has been having to repeatedly put him down. Once hes asleep he's down until 7am but it's absolutely relentless until then 
Any pointers please?