How do you get a baby aline on sims?

In order to get a baby alien on The Sims, you must first buy a telescope. The most expensive the telescope is, the more likely you are to spot a UFO. Place the telescope outdoors. Until nightfall, prepare your adult male Sim by making sure all of his needs are almost or completely full. Then around midnight, have your male Sim study the stars with the telescope all night long. It may not happen the first several times that you have him staring at the stars, but eventually a UFO will come along and he will spot it. The UFO will abduct your male Sim, and provided all the criteria was met (needs were well, adult age wasn't too close to elder age) you will end up with a baby alien. An adult male Sim is also more likely to find a UFO if he is interested in the subject of UFOs as well.