There is a small mystery about the genetics of Brandi Broke's unborn son. Exiting without saving and re-doing the birth will not change the look of the baby. It will always have black hair and look very much like Brandi. This is because, technically, the baby has no father, only a mother (Brandi), and gets all its genes from Brandi - so, the appearance of the baby will be grey eyes, black hair, etc., but it will still be male. It appears that this sort of "cloning" always produces the opposite sex in The Sims 2, which is why the baby is always male, even though a baby's gender is determined at birth. In real life, this is next to impossible.
In Brandi's memories, the order of the baby's conception and Skip's death don't quite fit in properly, so it appears as if the baby was conceived after Skip died. Skip is set as the father, but because his character file is Unlinked the baby gets only Brandi's genetics. Editing Skip's character file with the program SimPE so that he is no longer Unlinked, if done before the baby is born, will result in the baby being born with the genetics of both Brandi and Skip and having a chance of being female.