Healthcare Library

Welcome To Week 26

26 Week Old Fetus

Your Baby: Lung Development

Your baby weighs about 1.5 to 2 pounds (850 g) and measures 9.2 inches (23 cm) from crown to rump. At this point, the baby's lungs and brain are much more developed than before and are still developing. The baby has eyelashes and can recognize light from dark. This means that the optic nerve has developed. Your baby can hear you and your heartbeat, digestion, and other body sounds. Your baby can also hear outside noises such as your voice and the voices of others. So if a sudden sound startles you, imagine what it does to your baby!

Your Body: Fit to Be Pregnant

It may be easier to exercise earlier in your pregnancy than during the last 3 months (third trimester) of pregnancy. Choosing safe exercises for you and your baby is also important. As your weight and balance change, certain exercises may become uncomfortable or be potentially harmful. After 20 weeks of pregnancy you should not do exercises that require lying flat on your back. This position may make blood circulation more difficult.

If you were very active before you got pregnant, it's fine to stick with your usual routine as long as your health care provider tell you it is OK to do so. If you are new to exercise, start slowly and built up gradually.

For a total-body workout that is low stress on joints and muscles, try walking, swimming, or a stationary bike. Always warm-up before exercising and cool down afterwards. With the extra weight from pregnancy, your body has to work harder than it did before. Exercise increases the flow of oxygen and blood to the muscles and diverts it away from other parts of the body. This makes it important to not overdo the workout or to do very strenuous exercise while pregnant. The workout should not cause pain, shortness of breath, or excessive tiredness. The goal is to gain the benefits of exercise while protecting you and your baby from harm.

The following tips are based on the recommendations of the American College of Obstetricians and Gynecologists and the American Academy of Family Physicians:

  • After 20 weeks, avoid doing exercises while lying on your back.
  • Wear comfortable clothing that will help you to stay cool. Look for a supportive sports bra to protect your breasts. Later in your pregnancy, you may want to get a belly support belt.
  • Consume an extra 300 calories a day that you need while pregnant.
  • Avoid getting overheated when exercising especially in hot, humid weather.
  • Drink plenty of water to stay hydrated.

Recommended exercises include:

  • Walking
  • Stationary bike
  • Low-impact aerobics
  • Swimming

Sports to avoid because they are high risk for fall or trauma include:

  • Gymnastics
  • Horseback riding
  • Skating
  • Skiing (water/snow)
  • Hang gliding
  • Vigorous racquet sports
  • Weight lifting
  • Scuba diving

Note: If you are a high-risk pregnancy, you may not be able to exercise, or do so with restrictions. Be sure to talk with your health care provider about what is best for your body.

If you fall when exercising, especially if you land on your belly, seek medical attention immediately. Trauma to your uterus can cause the placenta to tear away from the wall of your uterus. This condition, called an abruption, can be life-threatening to both you and your fetus.

On a Different Note: Fetal Development in a Flash

Creating a new life is nothing short of a miracle. With this fetal development tool, you can get an insider's view of a baby in the making -- from conception to term. On this animation, you can:

  • Watch the entire development
  • Specify portions of the pregnancy (i.e., weeks 15-25)
  • Freeze the frame on a specific week

Weekly Tip

Before crawling into bed at night, light some candles in your bathroom and draw a bath. Put in some aromatherapy drops or bath gel, if you have any, and mute your phone. Once you're safely in the tub, put your feet up and let the energy drain back into your legs. Taking a bath before bed may be a great solution to ensuring a good night's sleep.




Review Date: 8/1/2017
Reviewed By: Peter J Chen, MD, FACOG, Associate Professor of OBGYN at Cooper Medical School at Rowan University, Camden, NJ. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., a business unit of Ebix, Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
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