The second child policy has been fully opened, and before preparing for the second child, it is important to understand pregnancy-related knowledge and be mentally and physically prepared. Many women may still have the following misconceptions about second pregnancy. Myth 1: As long as your period comes on time, you can get pregnant, and if you can’t, you can do IVF. Being able to have a normal period is a prerequisite for pregnancy, but if you are older and your ovarian function is declining, even if you do IVF, the success rate is very low. The number of follicles is like the rice inside the rice bowl, consuming some every month, if the used can only have a few grains of rice left, the clever woman can not cook without rice, and the doctor can do nothing. Therefore, couples who want to have a second child should not take IVF as a lifesaver, but should treat the matter of pregnancy rationally. Myth #2: You should try all kinds of methods in the hope of improving your ovarian function. Although medicine is advancing rapidly, there are no effective drugs for improving ovarian function. This is like how makeup can make you look young and beautiful, but it cannot change your actual age. Relaxation, physical exercise, regular work and rest, and a balanced diet are all effective ways to take care of yourself. Myth 3: Can I choose the gender of my second child? For women who already have one child, they want to choose the gender when they are pregnant with their second child. However, there is no way to decide whether to have a male or female child, and you should not trust the abuse of drugs, which may also have an impact on the fetus. Third generation IVF technology, or PGD technology for short, is a technology used to test embryos genetically, which technically can screen for men and women, but only for companion genetic disorders, such as certain diseases that are only passed on to a specific gender, and if they are only passed on to boys, female embryos can be screened for transfer, and vice versa. Our law clearly states that IVF cannot be gender-selective unless there are special diseases as described above. Myth 4: Can I have a double pregnancy again? The risk of twin pregnancies is significantly higher than that of single pregnancies, and many of those who are preparing for their second pregnancy are of advanced age, even women who have had a previous cesarean section, which increases the physical burden during pregnancy and increases the risk of miscarriage, premature birth and fetal malformation in twin pregnancies. Myth 5: It’s easy to have another baby when you’ve already had one? The fact that you have had a child before does not mean that the second child must be easy to carry. Some women have had multiple abortions, recurrent pelvic inflammatory disease, menstrual disorders, unclean sex, smoking and other bad habits after having a child may make it difficult to conceive a second child, if there is no good news after trying to conceive for a period of time, go to the hospital for examination as soon as possible. Of course, a successful pregnancy can not be careless, regular maternity check-ups are important, the risk of complications such as high blood pressure and diabetes during pregnancy increases in women of advanced age, through maternity check-ups, the physical condition of the fetus and mother can be found in time to protect the second child. Myth 6: If you’ve had a child before, the male partner doesn’t need to be examined. Although men do not have as short a reproductive period as women, and in real life there are indeed cases of senior men and young women getting married and having children, it is still necessary for the male partner to be examined before the second child is prepared. It is true that we can see some men who have a previous history of fertility in the clinic and found severe low sperm or even azoospermia in their semen examination. It is recommended that the male partner should be examined before the female partner because the male semen test is non-invasive and simple compared to the female test. In short, the second child needs to be careful not to let it become a sweet burden.