tummy time problems

Hi ladies, my son is 11 weeks old today and he hates tummy time! He used to be brilliant and when on my stomach he would push himself up
To look around but the last month he has stopped all of it and screams and cries if he's on his stomach anywhere. Any ideas or tips to help me encourage good tummy time. He loves sitting up and 'fake' standing where we hold all his weight but tummy time to push up and rolling over are a no go 😩