4. The number of kids you have.
For mothers, if you already have a few kids, the chance of getting twins is even higher.
5. If you are….African.
So…according to a study, where you’re from may also increase your chances of twins. Nigerians for some reason in particular have a higher chance of getting twins as opposed to Europeans.
6. If you are in your 30s and 40s.
Naturally conceived twins and triplets are more common in women in their 30s and 40s. There is some idea that the older you are the more likely you are to conceive twins, because apparently as you reach the end of your fertile life the body panics a bit and often releases more than one egg.