Decrease in movement?

Maybe I'm being paranoid but I feel like baby boy hasn't moved much at all today. I am 38 weeks tomorrow, I haven't sat down much today which may be why but is this normal? I know he's probably getting crammed in there too- but I know it can be a sign of stress on the baby. I have felt him a few times in the past hour, just not a huge amount- I could be overthinking it now though. Opinions?