I had loaded up one of my only empty houses to get some things in it ready to move one of my families in it. I had a sim and his two kids there at one time, a child and a toddler. I had him and sim I had him with one time get married, he asked her to marry him in house that she has which I built up to have 4 bedrooms. His oldest child grew up and I got her married to another sim and she is now pregnant and living him her husband at his parents home. The toddler is now a child. Well when I loaded up the house they were there and the youngest kid looks like a freak, at times falls down and crawls, her older sister looks size of child, but has features of a adult and shows the usual signs of a sim in early pregancy. Here is link for the movie.