Pretty soon, she'll be saving her extra sleeping for nighttime. I'm never really sure why my baby is crying. Crying is the only way your baby can let you know what's happening in his world. He may cry because he's hungry. He may just be bored.
Some babies have fussy periods, even if they've been fed, changed, and are rested.
You'll learn whether your baby is fussing or has a real need to be met. You'll hear him cry one way when he wants to be fed, and another when he wants to be picked up. If your baby is in pain, he'll usually cry out suddenly and loudly, with a cry that's a high-pitched shriek followed by wailing. I'm returning to work after my baby is born and need child care. Ask your baby's doctor for recommendations, as well as other parents.