BABY WEEK 9
Your baby's salivary glands have been working since she was inside you, but you may notice that she's started to drool. She's also putting everything in her mouth and producing more saliva than she can swallow. This doesn't mean that your baby's teething just yet, though — that probably won't happen for another two weeks, at least. The vast majority of babies sprout their first tooth between 4 and 7 months of age. If your baby's an early developer, you may see her first white cap, usually one of the bottom two middle teeth, as early as 3 months. (And in rare cases, a baby's first tooth is visible at birth!) Many parents permanently affix a bib to their baby about now to catch the drool. Just remember to take it off when your baby sleeps to prevent strangulation.
If your baby's sleeping through the night (five or six hours at a stretch), you're one of the lucky few. Most 9-10 weeks-old babies still wake up in the middle of the night. But even babies who aren't sleeping through the night at this stage should be sleeping and staying awake for longer intervals instead of cycling back and forth so much. Your baby will most likely have two to four long sleep periods and as many as ten hours of awake time in 24 hours.
Your baby is learning how to rock and roll — well, maybe just roll. At this age, she'll probably be able to move from her side to her back and her back to her side. The complete roll over won't come for another month or so, though, because she needs stronger neck and arm muscles for that maneuver. Your baby's increasing mobility means that you must keep a hand on her during diaper changes. Never leave your baby unattended on a bed or any other elevated surface now that she can move around.
Reaching and tracking. Around this time (three months) your baby’s eyesight has improved enough to allow her to see objects farther away than her own hand. Now she wants to reach for things, especially colorful objects.
Sitting up:Your baby leans over into a tripod position, and soon enough figures out how to get on all fours, you can prop her in a seated position. This helps build her muscles, and allows her to see how much fun it is to have those hands free to play with her toys
Feelings: Your baby smile at you, move both eyes together most of the time, lift their head when lying on their tummy, kick his legs strongly, seems to listen to you and watch your face, make sounds other than crying and your baby will start talking back to you and have sleep patterns which vary greatly