[spoiler]It is discovered that Aeryn is pregnant at the end of Season 3. (Literally in about the last 30 seconds of Season 3.) It is later revealed that Sebaceans can hold a fetus “in stasis” for up to 7 years before releasing it to develop. Aeryn announces that she has released the fetus at the end of Season 4.
do we know who the father is? And what effect has this had on Crichton? So she released the fetus at the very end of Season 4 or we saw her pregnant for part of season 4?