Every baby’s progress is different:) even between both my kids, their milestones were so different. At 5 months, since baby’s awake longer, you can do tummy time more often, and for a longer duration too. If baby’s upset, put a toy/book he likes in front of him as an incentive. Another thing you can do it to put him on your tummy/chest while you lie down. They’re normally happier to do more tummy time when they can see you:)
Can try get baby gym to help your baby with it and let your baby go side way keep teaching.
Thanks mommy will try it
farhana