These games have become so addicting, everyone want to be playing these games. There are many skins you can get online. There are rules about getting pregnant in the sims 2 and sims 3. You can choose if you want twins or a single baby. There are no cheats which will enable you to get the outfits changed. You can get the pregnant outfits when you go to the plan outfit option, you can change the colour and pattern. I am not a fan of these games and will only be able to help you this much. You can always Google more information regarding the same.