Under normal pregnancy, the probability of twins is about 6%. It also depends on genetic factors. If twins were born at home before, the possibility of twins will increase. The probability of multiple births in natural pregnancy is lower than 1%.
What are the causes of multiple pregnancies caused by IVF surgery in the United States? There are many factors. One of the main reasons is the multi-embryo transfer in the American IVF program. When a couple received IVF treatment in the United States, fertilized eggs were cultured in the laboratory. The uterus should be implanted within 6- 12 days, and the embryo will hatch and attach to the endometrium. Sometimes this doesn't happen, and the embryo dies. This is called the failure of IVF in America.
Due to the high cost of IVF treatment in the United States, many couples choose multi-embryo transfer. In the IVF program in the United States, usually two or three embryos are transferred to the uterus together. The reason behind it is to hope that at least one embryo can successfully attach to the endometrium and grow into a fetus.
If the environment in the uterus is conducive to implantation, then the possibility of success is great. Therefore, if multiple embryos are put into the uterus, their chances of survival are quite high. This is the main reason why many women in the United States have twins through IVF treatment.
The benefits of having twins
The most obvious advantage of twins is that they have two children in one pregnancy without having to go through two pregnancies and childbirth. Women who have difficulties in pregnancy or childbirth are happy to complete the treatment at one time. Twins have many other benefits. Children will never feel lonely when they grow up, and you will not be asked to pay attention to them all the time. Mothers of babies find that they have to spend a lot of time paying attention to their babies to make sure they feel comfortable. With twins, you don't have to find them playmates, they will play with each other.
The biggest advantage of having twins is that you don't have to pay for the IVF treatment of another child in the United States!
Related risks of twin pregnancy
Twin pregnancy increases the risk of complications. But don't be afraid, most mothers with twins have healthy babies. Being pregnant with twins will bring a high burden to your health. In the third trimester, doctors usually advise you to stay in bed more.
Twins are more likely to be born prematurely. If the baby is born too early, it may bring danger to the baby. The mother needs to take extra precautions in the ninth month to ensure that the baby is in good condition. Any strenuous exercise may lead to delivery or accelerate delivery.
When you are pregnant with twins, your baby may be underweight, lighter than a singleton. It is believed that premature and low birth weight babies are more likely to face health problems in later life.
Mothers with twins suffer from certain diseases, such as pre-eclampsia, gestational diabetes and placental abruption, which are at high risk. These conditions will not affect every mother who is pregnant with twins. Maintaining a healthy lifestyle can help you get pregnant smoothly. Ensuring that you strictly follow the doctor's advice will help you reduce the risk of twin pregnancy.