Q: My husband and I are both twins. I am an identical twin, and he is a
fraternal twin. What are our chances of having twins of our own?
A: Your chance of having twins is less than you might think. There are two different kind of twins:
The incidence of monozygotic twins is the same all over the world, it's 1 in 250 pregnancies. And not matter if you were a monozygotic twin or not, the incidence is still the same.
The incidence of dizygotic twins in general is 1 in 85 pregnancies, but it also depends on your ethnic background. People from Africa have a higher incidence and Asians have a somewhat lower incidence.
If you yourself were a dizygotic twin then your chance having another set of dixzygotic twins depends mainly on your ethnicity and then it's likely a little higher. For the average person it would increase probably from 1 in 85 to 1 in 50 pregnancies.
Your chance of having twins is not increased because you are an identical twin.
Here are the odds of having twins: