Having twins is a wonderful gift. Few people have the opportunity to experience so much happiness in their life. In fact, the probability of having twins is quite small. 
In the case of singleton pregnancies (monoamniotic-monochorionic twins) it is even lower.
Singleton pregnancies are considered high-risk pregnancies and occur only once in 10,000 births. They occur when twins share the same placenta and amniotic sac.
This type of pregnancy is considered high-risk because complications can arise. For example, the placenta can become compressed, limiting the ability of one of the twins to feed. It is interesting to note that identical twins are always identical and always of the same sex. This is because they come from the same genes.
It was one of the most beautiful moments the hospital staff has ever experienced.
The first thing the twins did after birth was to hold hands. It was a very touching moment and everyone present was moved.
Twins are born holding hands, inseparable: They need each other
