She's 65 months pregnant, her nipples are changing, and it's been six months since she became pregnant

She's 6.5 months pregnant, her nipples are changing, and it's been six months since she became pregnant. So, what's going on with her body?
她怀孕六个半月了，乳头开始发生变化，而且怀孕也已经六个月了。那么，她的身体到底发生了什么变化呢？
妊娠6.5ヶ月、変わっていく乳首と妊娠して半年過ぎました。さてさて彼女の身体はどうなっているのでしょうか？