Methods to Increase the Chance of Twins Twins have been a popular family birth for thousands of years, but how to increase the chance of twins has always been the focus of couples trying to conceive. With the continuous development of science and technology, more and more people are beginning to look for scientific methods of pregnancy preparation to lay the foundation for giving birth to twins. The following four aspects introduce in detail ways to increase the chance of twins, making your pregnancy preparation process more scientific and professional. Genetic factors Genetic factors have always been one of the important factors in deciding to have twins. If you or your partner have a family history of twins, the chances of having twins are