An egg cell is implanted in the uterus about one week after fertilization and then becomes inseparable from the mother for the next nine months. During the first 4 months, your baby will change dramatically every minute. He grows, his organs develop and function, but his changes are so silent that you may not even notice them except for your growing abdominal circumference. For the first four months, he is always moving, but in a smaller way that you cannot perceive. Your baby will have a heartbeat, and you will have a heartbeat at 45 days of pregnancy. The baby will breathe, and from 11 weeks of pregnancy the baby will be moving in a breathing-like manner. Of course there is no air in the womb, but breathing-like movements will draw amniotic fluid into the lungs, which is good for the development of the lungs. The baby will swallow and there is nothing to eat in the womb, but you can taste the amniotic fluid. If the baby does not swallow the amniotic fluid, there will be too much amniotic fluid. The baby will hiccup and occasionally eat uncomfortably and will hiccup. At the end of pregnancy the mother will occasionally feel regular fetal movements for a while. The baby will yawn. No one asks the baby to study hard at night, he can sleep whenever he wants, but sometimes he will be sleepy and yawn, this action of the baby will occasionally be seen by the ultrasonographer. The baby will pee. The main source of amniotic fluid in the middle and late stages of pregnancy is the baby’s urine. If the baby does not urinate or urinates little, there will be too little amniotic fluid. From the middle of pregnancy due to the increase of amniotic fluid, his room becomes spacious and he starts to learn to do gymnastics, lifting his arms, kicking his legs, fetal head, turning around, etc. After 5 months, his strength started to get stronger and he was not happy to entertain himself alone. As long as he was awake, he started to interact with his mother, waving his little fists, lifting his little feet and impacting the walls of her uterus as if to tell her: I am safe. At mid-pregnancy, he is small and roomy, like a good gymnast. He can do cartwheels, cartwheels, continuous cartwheels, jump rope, etc. For example, air flips: he can shift from head to breech position or from breech to head position overnight. For example, jumping rope: the baby is fixed to the placenta through the umbilical cord, he drills around the cord, he may wrap the cord around his body or neck, or he may accidentally tie the cord in a knot. For example, continuous lateralization: the cord twists continuously in one direction, making the cord look like a telephone wire. Towards the end of pregnancy, the baby gets bigger and there’s not as much room for him to exert himself, but he has more muscle power. You can not only sense but also see every punch and kick hitting your mother’s belly. See your belly bulge here and there from time to time. It’s as if you’re not just interacting with mom, but also saying hello to dad. Every dad is excited to see it. The baby is not lonely at all and has a colorful life. However, although the baby is protected by the mother in the womb, it can still encounter various dangers, mainly hypoxia. Acute cases such as placental abruption, slow cases such as placental dysfunction due to mother’s illness, as well as knotted or twisted umbilical cord may cause the fetus to be in a state of oxygen deprivation, and then the baby will become inactive. Fetal movement will then decrease or even stop moving. Since fetal movement is a signal for your baby to report to you, it is important for you as a mother-to-be to listen to this signal. The normal fetal movement is about 6 times in 2 hours, less than that is a decrease. The baby is in the womb, there is no day and night rule, he sleeps in a cycle of about 20-40 minutes. When the fetus sleeps, it will be quiet, and when it wakes up, it will move its limbs. If there is no fetal movement within 20 minutes, don’t be anxious and wait for your baby to wake up from his sleep. If he doesn’t report to you for 12 hours in a row, it means he is lacking oxygen. You need to go to the hospital as soon as possible. Your doctor will ask you to count the fetal movements after you are 30 weeks pregnant. Why is it at this time? Why don’t you count from 20-30 weeks? After 30 weeks of pregnancy, the fetus is nearly mature if it leaves the mother’s body and is able to adapt to the outside world and survive independently with the help of the doctor. If the fetus is really in danger due to the lack of oxygen in the womb, the doctor may consider letting it leave the womb, breathe its own air, feed itself, and not rely on the unreliable umbilical cord. But not before 30 weeks, if there is a problem with the placenta and umbilical cord, the doctor can do nothing about it.