When the baby is finally born after a montage of past lives, it is actually a boy and they name him Dil (short for Dylan), after a relative of Didi's.
When the baby is finally born after a montage of past lives with various wildlife and science adventures, it is actually a boy. Eventually, both Stu and Didi name him Dylan Prescott Pickles (but nicknamed him Dil, for short instead), after a relative of Didi's.