Breast Tenderness and Changes During Pregnancy

If your breasts are growing (by the second!) during your pregnancy, they're also likely ultrasensitive and tender. (Look but don't touch, darling.) Breast tenderness is one of the most common symptoms of pregnancy, usually starting around week 4 to week 7 and lasting through the first trimester, though your breasts will continue to change throughout your pregnancy, culminating with the production of colostrum – the precursor to breast milk and your baby's first food after delivery – that will begin to leak around week 38.

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What causes breast changes and tenderness during pregnancy?

That dazzling hormonal duo — estrogen and progesterone — deserves most of the blame for changes and tenderness. Other factors include the (good and necessary) fat that's building up in your breasts and increased blood flow to the area. Why all the fuss? Your breasts are getting ready to become milking


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