Objective: Different stresses during pregnancy use to change postnatal development of offspring. We compare effects of different stressors in early organogenesis on rats' offspring of early postpubertal age. Methods: Rats on the 9-10^th day of pregnancy were subjected to one of the stressors: acute hypobaric hypoxia (AHH, level of O₂ was about 5%, rats were divided to low resistant and highly resistant to AHH) or immobilization (IM, throughout 6 hours). We detected the survival rate, weight and behavior (in "Hole board" and "Elevated plus maze"), as well as level of corticosterone in adrenals and blood plasma in 8-week-old males and females. Pups of non-stressed rats were used as control. Results: Only antenatal IM decreased the survival rate (78% vs 94% in control). Males from highly resistant to AHH rats and females from immobilized rats had the decreased weight compared to control (an average of 13 g and 9 g, correspondingly). Behavioral changes were observed in rat pups born from either highly resistant to AHH or immobilized rats. Also females from low resistant to AHH rats had the lower level of corticosterone in adrenals and blood plasma (by 34% and 23%, correspondingly), while females from immobilized rats had the increased hormone level in adrenals (by 44%). In all cases differences were significant at P<0.05. Conclusion: Effects of antenatal stresses of different etiology were observed in rats of early postpubertal period. The most expressed consequences were found in pups from highly resistant rats, survived AHH or rats, survived IM. Nature of consequences depended on stressor type and gender of rat pups.