From twins and quintuplets to octuplets and nonuplets ... In this case, twins would be fraternal, not identical; they can be ...

And if you’re wondering what your chances might be for conceiving quintuplets naturally, it’s around 1 in 60,000,000! All these types of multiples can be identical, fraternal — or a mix of both.

It hasn’t been easy. After fertility treatments, Peltz Ivorsen and her husband at the time, Eric Peltz, welcomed the quintuplets in 2004 – a set of fraternal triplets and a set of identical twins.