The length of pregnancy in the Fallout universe has been a topic of discussion among fans. Since Fallout is set in a post-apocalyptic world where the timeline diverged from ours in the 1950s due to different geopolitical and technological developments, it is uncertain how long pregnancy lasts in this universe.
Numerous factors could influence the length of pregnancy in the Fallout world, such as radiation exposure, malnutrition, and the scarcity of medical resources. However, it is reasonable to assume that the basic biological processes of pregnancy function similarly in both universes, with an average gestation period of around 9 months.
In Fallout 3, a doctor’s note found during the “The Replicated Man” quest implies that the gestational cycle of the android being sought is abnormal, suggesting that the developers intended for a typical human pregnancy to last approximately 9 months in the Fallout universe. In Fallout 4, the “Kid in a Fridge” quest refers to a child who had been frozen in a refrigerator for 200 years, yet his mother gave birth to him after a standard pregnancy period, providing further evidence of a 9-month gestation period.
Although fictional scenarios exist in Fallout 3 where drugs can accelerate fetal growth, suggesting that certain factors could affect the duration of pregnancy in the Fallout world, the available evidence points to human gestational periods lasting around 9 months.
In conclusion, while there is no definitive answer to the question of how long people are pregnant in the Fallout universe, it is likely that the gestation period for humans is similar to that of our world, around 9 months. Nevertheless, the post-apocalyptic world of Fallout presents numerous uncertainties, and the specifics of pregnancy remain open to interpretation by players.