论曰∶阳施阴化，所以有娠。遇三阴所会，多生女子。但怀娠三月，名曰始胎。血脉不
流，象形而变。是时男女未定，故令于未满三月间服药方术，转令生男也。其法以斧置妊妇
床下，系刃向下，勿令人知。恐不信者，令待鸡抱卵时，根据此置窠下，一窠尽出雄鸡。此
虽未试，亦不可不知。凡受胎三月，遂物变化。故古人立胎教，能令子生良善、长寿、忠效
、仁义、聪明、无疾，盖须十月之内常见好景象。毋近邪僻，真良教也。如有触忤伤胎，治
各有法。
又自初觉有娠，取弓弩弦缚妇人腰下，满百日去之，紫宫玉女秘法也。妊娠三月以前，
取雄鸡尾尖上长毛三茎，潜安妇人卧席下，勿令知之，验。
又取夫发及手、足甲，潜安卧席下，勿令知之。
又妊娠才满三月，要男者，以雄黄半两衣中带之；要女者，以雌黄带之。
王子亨云∶若妊娠，其脉三部俱滑大而疾。（在左则男，在右则女。）经云∶阴搏阳别，
谓之有子。搏者，近也。阴脉逼近于下，阳脉别出于上。阴中见阳，乃知阳施阴化，法当有
子。又少阴脉动甚者，妊子也。手少阴属心，足少阴属肾。心主血，肾主精，精血交会，投
识于其间则有娠。又三部脉浮沉正等无病者，有妊也，余病如《脉经》说。左手尺部浮洪者，
为男胎也；右手尺部浮洪者，为女胎也。两手尺部俱洪者，为两男；俱沉实者，为两女。又
云∶中指一跳一止者，一月胎；二跳二止者，二月胎也。
论述说：阳气施布，阴气化生，因此形成妊娠。如果遇到三阴经气交会之时，多会生出女孩。但是怀孕三个月时，称为“始胎”。此时血脉尚未流畅运行，胎儿随母体所感之象而发生变化。这个时候男女性别尚未确定，所以让人在未满三个月期间服用药物或采用方术，以求转生为男孩。其方法是把斧头放在孕妇床下，使刀刃朝下，不要让他人知道。如果担心别人不相信，可以等到母鸡抱窝孵卵的时候，按照这个方法将斧头放在鸡窝下面，结果一窝孵出的都是公鸡。这种方法虽然未经过验证，但也不可不知道。凡是受孕三个月后，胎儿就会随着外界事物而变化。所以古人设立胎教，能够让孩子出生后善良、长寿、忠诚、效法、仁爱、正义、聪明、无疾病，大概是因为在十月怀胎期间经常看到美好的景象。不要接近邪僻的事物，这才是真正的良好教育。如果有触犯伤害胎气的情况，治疗各有方法。
又自从初次察觉有妊娠开始，取弓弩的弦束缚在妇人腰部以下，满一百天后去掉它，这是紫宫玉女的秘密方法。怀孕三个月以前，取雄鸡尾尖上长的三根长毛，悄悄安放在妇人的卧席下面，不要让她知道，这很灵验。
又取丈夫的头发以及手甲、足甲，悄悄安放在卧席下面，不要让她知道。
又如果怀孕刚满三个月，想要男孩的，用雄黄半两随身携带；想要女孩的，用雌黄随身携带。
王子亨说：如果是妊娠，其脉象三部（寸、关、尺）都滑大且疾速。（脉象在左手则生男，在右手则生女。）《内经》说：阴脉搏动有力而与阳脉有别，称为有子。搏，是近的意思。阴脉逼近于下部，阳脉别出于上部。阴中见到阳，从而知道是阳气施布、阴气化生，按理应当有子。又说：少阴脉跳动特别明显的，是怀孕了。手少阴经属于心，足少阴经属于肾。心主血，肾主精，精与血交会，神识投入其中就有妊娠。又说：三部脉象浮沉正常相等且无其他疾病的，是有妊娠，其余病症如《脉经》所说。左手尺部脉象浮洪的，是男胎；右手尺部脉象浮洪的，是女胎。两手尺部脉象都洪大的，是双男胎；都沉实的，是双女胎。又说：中指脉搏一跳一止的，是一个月的胎；两跳两止的，是两个月的胎。
It is stated: The distribution of Yang and the transformation of Yin result in pregnancy. When the Qi of the Three Yin meridians converges, female offspring are more likely to be born. However, at three months of gestation, it is termed "Initial Fetus" (Shi Tai). At this stage, the blood vessels have not yet flowed smoothly, and the fetus changes according to the forms perceived by the mother. Since the sex has not yet been determined, it is advised to administer medicines or employ methods during this period of less than three months to influence the birth of a male child. The method involves placing an axe under the pregnant woman's bed with the blade pointing downwards, without letting others know. For those who doubt this, when a hen is brooding eggs, one may place the nest under the axe following this method; all chicks hatched from that nest will be roosters. Although this has not been tested, it is knowledge one should not ignore. Once conception occurs for three months, the fetus undergoes changes influenced by external objects. Therefore, the ancients established prenatal education (Tai Jiao), which can ensure the child is born kind, long-lived, loyal, imitative, benevolent, righteous, intelligent, and free from disease. This requires exposing oneself to beautiful scenes throughout the ten months of pregnancy and avoiding evil or perverse influences, which constitutes true good education. If there is any trauma affecting the fetus, there are specific treatment methods for each case.
Furthermore, from the first sign of pregnancy, take the string of a bow or crossbow and bind it around the lower waist of the woman; remove it after one hundred days. This is the secret method of Zi Gong Yu Nu. Before three months of pregnancy, take three long feathers from the tip of a rooster's tail and secretly place them under the woman's sleeping mat without her knowing; this is effective.
Also, take the husband's hair, fingernails, and toenails, and secretly place them under the sleeping mat without her knowing.
Additionally, if pregnancy has just reached three months and a male child is desired, carry half a tael of Realgar (Xiong Huang) on one's person; if a female child is desired, carry Orpiment (Ci Huang).
Wang Ziheng said: In cases of pregnancy, the pulse in all three positions (Cun, Guan, Chi) is slippery, large, and rapid. (If the pulse is prominent on the left side, it indicates a male; if on the right, a female.) The Classics state: "When the Yin pulse beats strongly and is distinct from the Yang pulse, it is called having a child." "Beating strongly" means approaching. The Yin pulse approaches the lower part, while the Yang pulse emerges distinctly from the upper part. Seeing Yang within Yin indicates that Yang has distributed and Yin has transformed, suggesting pregnancy is expected. It is also stated: If the Shao Yin pulse beats particularly vigorously, it indicates pregnancy. The Hand-Shao Yin meridian belongs to the Heart, and the Foot-Shao Yin meridian belongs to the Kidney. The Heart governs Blood, and the Kidney governs Essence. When Essence and Blood converge, and consciousness is implanted therein, pregnancy occurs. It is further stated: If the pulses in all three positions are floating and sinking equally normal, with no other diseases present, it indicates pregnancy; other conditions are described as in the *Mai Jing* (Pulse Classic). A floating and vigorous pulse at the Chi position on the left hand indicates a male fetus; a floating and vigorous pulse at the Chi position on the right hand indicates a female fetus. If both hands' Chi positions are vigorous, it indicates twin males; if both are deep and solid, it indicates twin females. It is also said: A pulse beat that skips once every two beats at the middle finger indicates a one-month fetus; skipping twice every four beats indicates a two-month fetus.