Skip to main content

Search
Kids Health

Week 11

|

Your Baby's Development

From this week until week 20, your baby will be growing rapidly - increasing in size from about 2 inches (5 cm) to about 8 inches (20 cm) from crown to rump. To accommodate all this growth, the blood vessels in the placenta are increasing in both size and number to provide the baby with more nutrients.

Facial development continues as the ears move toward their final position on the sides of the head. If you saw a picture of your baby now, you'd think you had a genius on your hands - the baby's head accounts for about half of the body length!

Although your baby's reproductive organs are developing rapidly, the external genitals of boys and girls appear somewhat similar until the end of week 11. They will be clearly differentiated by week 14.

Your Body

Nourishing your baby usually requires that you gain weight - and in most cases, the recommended weight gain is 25 to 35 pounds (11.33 to 15.87 kg) over the course of the pregnancy. If you were overweight or underweight before pregnancy, your health care provider may have different recommendations for weight gain.

Note: All information is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor.

© 1995-2009 The Nemours Foundation/KidsHealth. All rights reserved.

Should your child see a doctor?

Find out by selecting your child’s symptom or health condition in the list below:

Spring 2013: Good Growing Newsletter

In This Issue

  • You Are a Key Player on Your Child’s Healthcare Team
  • Bad Weather? Bring the Action Indoors!
  • Coping with a Crying Baby

Download Spring 2013 (PDF)

Videos

Stories from the Heart: A Mother’s Day Tribute 2013 0:57:30Expand
4.27.13

Watch heartwarming stories about mothers and patients and learn more about the amazing work done by the doctors and nurses at Seattle Children’s Hospital. Presented by Safeway. Consider making a donation to Seattle Children’s in honor of a woman you know, love or admire at Seattlechildrens.org/mothersday. Aired Saturday, April 27, 2013, at 7 p.m. on KOMO.

Play Video
What Is IBD, Crohn's and Ulcerative Colitis? 0:03:53Expand
4.26.13

In this video series, we address questions commonly asked by parents of children with IBD.

Play Video
How to Help Your Child Adjust to School After a Crohn's or Ulcerative Colitis Diagnosis 0:06:38Expand
4.26.13

In this video series, we address questions commonly asked by parents of children with IBD.

Play Video