Baby a few months normal head

Babies can lift their heads at one month, but they don't steadily lift them until three months later. Babies can stand upright for three to five seconds in a sitting position for one month. Babies can barely lift their heads in a sitting position for two to three months, and they can stand steadily for four to six months. When the baby is three months old, it can form the first curved part of the spine and can raise its head by itself, so that it does not need support from others when standing upright, and its head will not shake, or the baby can support its body when lying on its stomach, raise its head and hold it for a while, and can look left and right, and move its head freely, which is where the baby can raise its head. The baby can hold the baby's hand after raising his head and can lift the baby so that the baby's back is about 45 degrees from the ground.