There is a general consensus that it is safe for pregnant women to climb stairs, as long as they maintain caution and take necessary precautions. Climbing stairs during pregnancy can provide numerous benefits, including exercise, improving circulation, and strengthening the muscles. However, it is essential to take it slow, hold onto handrails for support, and listen to one's body to prevent any accidents or strain. Overall, climbing stairs in moderation can be a safe and beneficial form of exercise for pregnant women.