My LO is 12weeks old and i try to encourage tummy time but every he's placed onto his tummy he just lays face down. Doesnt even try to turn his head to the side so would end up smothering himself if left long enough. Iv tried proping him up with tummy toys even pillows which is a bit better the bigger the pillow but still he makes no effort into turning or lifting head. He does for a few moments if i lay on sofa with him on my chest but then screams after a few moments. His head control is really strong, not fully there yet he's a bit like a nodding dog but its always been somewhat there from an early age Anyone else's LO do this? IS it normal? how can i stop him for burying his head flat down into the pillows.