The Third Trimester of Pregnancy: Shortness of Breath and Edema

In the last trimester of pregnancy, yourgrowing babypushes your uterus against your diaphragm. The diaphragm is moved up about 4 centimeters from its prepregnancy position. Your lungs are also somewhat compressed. This all means that you’re unable to take in as much air with each breath.

This doesn’t mean, however, that you’re getting less oxygen. At the same time that your lung capacity decreases due to the physical constraint of a growing uterus, the respiratory center in the brain is stimulated by the hormone progesterone to get you to take slower breaths. Progesterone is releasedduring pregnancy. Although each breath may bring in less air, the air stays in the lungs longer so you extract the oxygen you and your baby need.

Your body also expands yourblood volumeduring pregnancy to make sure your baby is also getting enough oxygen.

Shortness of breath can be uncomfortable, but there are ways that you can breathe more comfortably.

Practice good posture

Make sure that you stand up straight with your shoulders back and your head lifted. Visualize a straight line connecting your sternum toward the sky to lift your chest.

Exercise

Aerobic exerciseimproves your breathing and lowers your pulse. Make sure that any program you begin is approved by your doctor.

If you haven’t begun practicing already, now’s a good time to startprenatal yoga. Breathing is central to yoga practice, and the extra stretching can improve your posture and give you more room to breathe.

Whatever form of exercise you choose, don’t overdo it! Listen to what your body is telling you.

Relax

“Just relax!” While that’s easy for someone who isn’t experiencing shortness of breath to say, it’s also true. The more anxious you become about shallow breathing, the shallower your breathing will become. It’s also important to rest when you need to rest.

Don’t overdo it

Listen to what your body is telling you and rest when you need a break. Now’s not the time to push yourself too hard. It’s important to pay attention to your body’s limits.

The feeling of breathlessness gets better as you approach delivery. As your baby descends in your pelvis, pressure on the diaphragm and lungs is somewhat relieved.

While it’s good to know nature has a plan for your body, you should look out for warning signs in the unlikely case that your shortness of breath indicates that something’s wrong.

Asthma

No doubt you already know if you haveasthmabefore you get pregnant. You also may already know that asthma canget worseduring pregnancy. Discuss with your doctor if asthma could be making your shortness of breath worse during the third trimester.

Anemia

In some cases,anemia— insufficient iron in your blood — can cause shortness of breath. Other symptoms of anemia includefatigue,headache, and a bluish tint to yourlipsandfingertips. To diagnose anemia, your doctor can check youriron levelsand may prescribeiron supplements.

Pain or persistent cough

If you feelpainwhile taking deep breaths, experiencefast breathing, or sense anincreasein your pulse, contact your doctor immediately. These could be signs you have passed ablood clotto your lung. This is also known as apulmonary embolism.

Contact your doctor if you have acoughthat lasts for more than a few days. You should always contact your doctor or call your local emergency services immediately if you feelchest pain.

Edemais a condition in which excess fluid builds up in your body’s tissues. You’ll notice it most in your feet,ankles, and sometimes, in your手. The fluid tends to pool in parts of your body most affected by gravity.

Many women experience edema during their pregnancy. For most of these women, warm weather and remaining in one position for any length of time contribute toswelling. Edema is at its lowest in the morning and increases throughout the day.

Report anyleg painto your doctor immediately. Tell your doctor if you notice sudden swelling or puffiness in yourfaceor hands. This can be a sign ofpreeclampsia.

Here are some strategies that can help you combat edema:

• Elevate your feet.Sit with your feet propped up whenever possible.
• Wear support hose.Full pantyhose may not feel good when you’re pregnant, but there are also support knee socks. Choose the size you’d have chosen before you were pregnant. Put them on in the morning before you become swollen.
• Avoid excessivesaltintake.This can lead tofluid retention.
• Drinkplenty of water.Staying hydrated will flush out wastes and help reduce the amount of water you retain.