ok trust me this really works!! to make ur sim to be pregnant let the two sims to realx in a double bed....(but they have to be the opposite sex) then u have to try doing it 2-4 times....... then when the sim has a bump.... press ctrl and c at the same time and type in "forcettwins"...... but i really forgot if it has space between the word so if it wont work then type in "forcet twins" i know its really boring to read this but wutever