How much movement should I be having??

I will be 34 weeks tomorrow and I just started four medications yesterday night when I was headed to bed, on top of my usual depression and anxiety medication. I can't tell if my son hasn't moved today or has had very little movement today. He's usually upbeat and always moving around definitely when I lie on my back but nothing since I rolled over about 3 minutes ago... please do not judge me for coming here first... the doctors always send people home so I'd hate to make a trip and he's fine.

Are there any ways I can make him move?

How much movement/kicks should I be having?