My breast did not start that until I was about 5 months. Breast tenderness and sensitivity occurs during pregnancy as a result of all the changes that your body is going through. Your breasts must prepare to feed your baby, and therefore they need to grow and develop, which often causes swelling and soreness. Specifically, breast tenderness is caused by the increase in hormone levels that happens during pregnancy. To prepare for baby, your body increases its levels of estrogen and progesterone. This increase in hormones causes blood to rush to your breasts, making them sensitive to the touch.
You breast tissue will also begin to change. Milk ducts and milk-producing cells will begin to form, causing your breasts to grow and change shape. More layers of fat beneath will begin to develop under your breasts, which will likely cause your breasts to increase in size. All of these factors contribute to the tenderness, soreness, and swelling that you are experiencing.
Here is a website with more of the same info: www.pregnancy-info.net
You breast tissue will also begin to change. Milk ducts and milk-producing cells will begin to form, causing your breasts to grow and change shape. More layers of fat beneath will begin to develop under your breasts, which will likely cause your breasts to increase in size. All of these factors contribute to the tenderness, soreness, and swelling that you are experiencing.
Here is a website with more of the same info: www.pregnancy-info.net