Breast Changes Before and After Baby

How to Pick the Right Nursing Bra

The right bra makes all the difference in keeping you comfortable. Choose one that's supportive with a flexible underwire. After the birth, a nursing bra with no underwire gives you the most room to grow. So while your bra size may continue to be a moving target, here's how to determine what you need now:

  • Measure the diameter of your rib cage under your breasts (this is your bra's band size).
  • Measure around your chest over the fullest part of your bust.
  • Determine the cup size by taking the difference between the two measurements.

    1/2 to 1 inch = A cup

    1 to 2 1/2 inches = B cup

    2 1/2 to 3 1/2 inches = C cup

    3 1/2 to 4 1/2 inches = D cup

    4 1/2 to 6 inches = DD (E) cup

    6 to 7 inches = DDD (F) cup

You'll need to repeat this process a few times throughout your pregnancy because your breasts and even your rib cage size can keep expanding.

Originally published in American Baby magazine.

All content, including medical opinion and any other health-related information, is for informational purposes only and should not be considered to be a specific diagnosis or treatment plan for any individual situation. Use of this site and the information contained herein does not create a doctor-patient relationship. Always seek the direct advice of your own doctor in connection with any questions or issues you may have regarding your own health or the health of others.

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