This process is called superfetation. These are not fraternal twins, fraternal embryos are the same age. Can two sperm fertilize one egg and form twins? Created with Sketch. Once an egg is ...

This process is called superfetation. These are not fraternal twins, fraternal embryos are the same age. Can two sperm fertilize one egg and form twins? Created with Sketch. Once an egg is ...

What's the meaning of fraternal twins? Fraternal twins come ... They really balance each other out." – seti1st "My twins are 2 months and couldn't care less about each other.

In fact, for every 1,000 births in the United States, only 31.2 of them are twins ... “Factors including maternal age, family history of fraternal twins, and fertility treatments may increase ...

But this only applies to fraternal twins. 2. Eat more sweet potatoes Women who naturally conceive twins are perceived to come from areas where sweet potatoes grow. Sweet potatoes improve the ...