Does anyone know how weight can impact pregnancy? How much extra weight can you have and get pregnant, I am 5'3" and 185, I have lost some weight, but I'm curious if anyone else has lost weight and then gotten pregnant, how much should I lose?
My understanding is that excess fat increases your estrogen, which can result in you not being able to maintain a pregnancy because your progesterone is to low (relatively to the estrogen).
As well, being overweight can be a symptom of PCOS, which has a bunch of hormonal effects itself. Classically, this would be a higher risk if you are heavier around the middle, like an apple shape.
However, LOTS of people who are plus size become happily pregnant, and have a healthy nine months. I wouldn't let it scare you if you have no particular risk factors, or if your doctor says you are ok. (Mine does, even though I don't believe her 100%...)