When pregnancy hormone amounts, such as estrogen and progesterone, increase and your breasts start preparing for milk production, you may experience an increase in size as well as sensitivity. They may become extra tender and may even tingle, especially during the first trimester. Thankfully, the soreness typically diminishes by the second trimester. Increase your bra size as your breasts become larger and wear a bra that provides firm support, even at night, if necessary, which can help ease discomfort and maintain support at the same time. This may also ease the strain put on your back, as your breasts become increasingly heavy.
