Is it normal for my 9-week-old to lie on his stomach and lift his head?

My baby is 9 weeks old and is lying on his stomach and lifting his head, looking around. Is this normal? Or is he a little ahead of himself?

Congratulations! Your baby is right on track. Infants at this age are becoming strong enough to use their head, neck and back muscles to serve their widening interests and improving eyesight. Encourage him by lying down like him while you chat together and imitate his sounds and expressions. It won't be long before he's able to roll himself over from his tummy to his back.