After childbirth, it can be a difficult time losing weight in general.  Frankly, I don’t think it should be.  If you are eating right and otherwise, I’ve seen a lot of women who obviously have a certain amount of water weight and other things that were meant to protect the baby to come off, and sometimes you just retain water seemingly for no reason.  but realistically speaking, if you are eating right and exercising, and yes you should actually be exercising while pregnant, you shouldn’t have a real challenge losing weight and fitting back into your old jeans. 

You will definitely have some loose skin, but loose skin and fat are not the same thing to say the least.  So while you are pregnant, yes the fetus is growing and yes some would consider the fetus a person.  But you are not eating for two!  You are eating for one and a little bit more.  So frankly speaking, you should be eating maybe one more serving of something in a day.  That should about cover it in all reality.  And frankly you should still be focusing on the fruits and vegetables, lean meats, and whole grains that you should have been focusing on before anyway as well as doing exercise.  You may of course want to stick to some gentler exercises, but there is no proof that exercise has any negative impact on the fetus.  So leave all the myths behind and take a realistic look at how things work.