I am guessing the following story was probably randomly made up by some tabloid writer rather than actually being true.
“Jamie Lynn says she has been so busy with the baby she has not been looking after herself and instead of eating healthily has been gorging on burgers and fries – too often than is good for her. Everyone thinks she has been comfort eating because of the stress of being a new mum and on top of that she is having to deal with all the rumors that Casey Aldridge has been cheating on her. She needs to start looking after herself better. Not just for herself but she has baby Maddie to think of now too.”
I think she looks great and the tabloids should stop picking on the pregnant celebs/new mums.