在怀孕期间，随着数量的增加，焦虑会悄悄潜入。分娩时，体重可能会突然急剧下降，有些体重可能会在分娩后持续数周或数月。准妈妈们可以通过查看平均体重来了解她们在分娩后几分钟到几个月里可以减掉多少磅。
体重增加
并不是所有女性在怀孕期间增加的体重都仅仅是因为孩子。根据美国国家医学图书馆的研究，怀孕前体重正常的女性在怀孕期间体重会增加25 - 35磅。这个数字中只有大约8磅是婴儿造成的。胎盘、多余的乳房组织和羊水大约占6到9磅，而扩大的子宫则占2到5磅。维持妊娠所需的额外血液供应也可能意味着体重增加4磅。虽然大部分体重在你生完孩子后很快就会减少，但是怀孕期间增加的5到10磅身体脂肪可能会持续更长的时间。
分娩后不久
根据婴儿中心的一篇文章《分娩后的身体变化》(Body Changes after birth)，妈妈们有望在分娩后立即甩掉宝宝的体重，以及血液、羊水和胎盘带来的一些体重，这可能会让你减轻12磅左右。During your first week, you may also notice that you are sweating and urinating a lot more than usual. By the end of that week, you may find yourself about 5 pounds lighter -- meaning a total loss of 17 pounds since giving birth.
周后出生
好消息是，根据美国国家医学图书馆的一篇文章“怀孕后减肥”，大多数女性在产后6周就能减掉怀孕时增加的体重的一半。It may take 6 months after giving birth, or longer, to lose all of the additional weight. Some women may not lose much weight during that time, especially if they did not gain much weight during pregnancy. For these women, weight loss may pick up when a doctor gives them permission to resume exercise routines, usually at the 6-week postpartum checkup.
额外的注意事项
根据《母乳喂养减重》的文章，母乳喂养每天可以消耗500卡路里的热量，所以放弃配方奶可能意味着更快的减肥。Breastfeeding mothers who eat when hungry may lose between 1 and 1 1/2 pounds per month during the first 4 to 6 months after delivery. Eating a varied diet with plenty of fresh fruits, vegetables and grains, as well as getting back into an exercise routine, may also help you get back to your pre-baby weight sooner, according to The Mayo Clinic article, "Weight Loss After Pregnancy: Reclaiming Your Body."