I don't know if anyone has mentioned this yet... but my Sim has been abducted 5 times already. Within like 12 hours... Normal hours, not Sim hours. And he gets pregnant every time. And it's always whe...
My male sim was abducted after asking his alien gf to try for a baby. I am thinking that was just coincidence. He came back pregnant and I had the hardest time even getting him to do task in the scientist career. He is a level 2 scientist also.