Do you swaddle him in the pram? Might just not feel secure in it
Not tried swaddling but certainly something we can try! She hates being put down generally and the only way she falls asleep is through bouncing and rocking for example so we always thought that the pram would be great but nope
My son initially never liked the pram but we persisted with keeping it moving until he drifted off. He now loves it and he’s 7 weeks old! Maybe try a white noise machine in the pram too if you haven’t already? 😀