An Oversight?

In the general population, identical twin pregnancies occur 0.45 percent of the time, or 1 in 250 births. It’s also a well-known fact that using fertility treatments increases the likelihood of conceiving twins. Had Kate realized that they were having fertility problems before he had? After all, they had been married for seven years when Kate finally fell pregnant. But that was enough speculation for one day. It was time to confront her.