While many people think of twins as a rare "double blessing" decided purely by luck, science suggests that your biological ...

Many parents would love to conceive twins. Isn’t it just adorable to have two little people who look exactly the same? There are two types of twins, identical and fraternal twins. Identical twins ...

There’s something fascinating about twins. The idea of two babies growing together often captures people’s curiosity. Many couples even wonder if there’s a way to plan or boost their chances of having ...

When a Colorado couple underwent in vitro fertilization late last year in the hopes of conceiving a sister for their preschooler son, they were shocked when the wife became pregnant with twin boys.

"Our miracle twins have the same birthday, but one is 18 days older." Seven years earlier, my husband, David, had been diagnosed with testicular cancer. He’d needed chemo and surgery, so doctors had ...