Asthma and Pregnancy
One-third of women find that their asthma improves during their pregnancy. Your baby depends on a constant supply of oxygen in your blood to stay healthy and develop the way she should. If your asthma symptoms aren’t controlled, your blood may not have enough oxygen to support your baby. This can lead to a low birth weight (less than 5.5 pounds). But that’s not likely to happen.
Although birth defects caused by asthma medicines are rare, your doctor may still try to cut back on your dosage during your first trimester.
Many women with asthma give birth to healthy babies. Most cases of asthma are mild, not severe, and can be safely managed with medicine.
It’s unclear whether breastfeeding can lower the chance that your baby will develop asthma. So far, studies only show that breastfed babies wheeze less during their first 2 years of life.
Experts believe that fast-acting inhalers and inhaled corticosteroids are safe to take when you’re pregnant. These medicines go right into your lungs. Very little is absorbed into your bloodstream where it could reach your baby.
Severe asthma or symptoms that aren’t well-controlled can cause a number of problems:
Severe morning sickness
Problems with your placenta
High blood pressure
Premature delivery (Your baby may be born before 37 weeks.)
Problems during labor