She is 2 months. She will last a maximum of a minute before crying like she's being murdered! She has pretty good head control when I sit her up but she isn't able to lift her head when on her tummy at all! I don't know what to do! She also has an aversion on one side in her crib/car seat/any time she is on her back the dr suggested more tummmy time but my daughter will just sit there crying not movkng her head at all