Arriving in the Womanland of Western Liang, the master and his disciples by mistake drink the water of Motherhood River. Thus the Tang Priest and Pig get pregnant with strange babies. Monkey gets instructions from the natives and travels to fetch water from the Miscarrige Spring in Childfree Cave on Mount Offspring Dissolved to use for abortion. Monkey learns that the Miscarriage Spring has been seized by the As-you-will Immortal, who is the uncle of Red Boy. The Taoist witch-priest refuses to give him water, so Monkey asks Friar Sand to assist him in combat. They drive away the Taoist witch-priest, obtain the spring water and relieve the Tang Priest and Pig.
師徒們在西梁女國境內誤飲了子母河的河水，致使唐僧、八戒懷了怪胎（詭孕）。大聖受土人的指點到解陽山破兒洞尋落胎泉的井水來“打胎”。大聖得知落胎泉爲如意真仙——紅孩兒叔父霸佔。妖道拒不給水，大聖喊沙僧來助陣，驅趕了妖道，獲得泉水解救了唐僧八戒。