This leaking milk is usually nutritionally dense milk called colostrum Leaking often begins in the third trimester. Your breasts are leaking during pregnancy because prolactin, the hormone responsible for milk production after the birth of your baby, starts revving up while you're still pregnant, usually in the third trimester. Pregnant moms start producing small amounts of colostrum as early as three or four months into pregnancy (you may have noticed your breasts becoming bigger before that, as your milk glands increase in number and size.) Breast milk can start coming in as early as the 16th week of your pregnancy, in your second trimester
The surge of pregnancy hormones initiates the secretion of milk from the glands in your breast. Your body typically begins producing breast milk before your baby is born This starts with colostrum, a thick, yellowish fluid that starts forming as early as 16 weeks into pregnancy Some people notice a little leaking in the second or third trimester Others don’t see any signs until baby arrives and both are totally normal! When does milk start leaking during pregnancy
Breast milk typically starts to leak during pregnancy, often around the second trimester, which is between 16 to 20 weeks However, some women may notice leakage as early as 12 weeks or even later, depending on their individual hormonal changes and body responses.
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