Your Baby Development: 13 Weeks OldHow big is your baby? This week your baby will be weighing around 12 1/2 pounds and measuring 23 1/2 inches if he/she was of average size at birth. Your baby should be sleeping about 10 hours at night now, although he/she may wake for short periods. By this stage the tonic neck reflex, which keeps baby’s head to the side most of the time has just about disappeared, and he/she can turn his/her neck to the side, making it easier to turn towards a sound or object. Your baby can bow see objects up to 20 feet away. The view of your baby’s world is very different from yours, all you need to do is get down on the floor to see what he/she sees. Your baby is now sitting when supported by the hips, and enjoys sitting in a semi upright position. This position is also best for learning and for play. Baby’s hands are now open most of the time, and he/she will shake and hold a rattle, or grab at your hair and jewelry. It is a thrill to hear your baby laugh and chuckle. Baby may also vocalizing more, cooing, squealing, whimpering and gurgling. Because you talk to him/her, he/she is beginning to understand a message is made up of syllables, and it wont be long till he/she starts making sounds such as “ooh” and “aah”.
Baby Development Milestones This Week
- Sits with support
- May bat at objects with closed fist
- Waits for expected reward, such as feeding
Mental & Social Development
- Tries to attract attention when a parent or sibling is nearby .
- May be attentive for up to 45 min.
- Spitting up
- Vomiting, (may be projectile)
- Weight loss
- Gagging or choking at the end of a feeding
- Respiratory problems
If you notice bumps on baby’s gums and the roof of her mouth, it may be immature oil glands that should disappear very soon.
Please note: The information provided on this website is not intended to and do not constitute professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this website.