or are they a result of fertility treatment.
I was ttc for 5 years and had already had 5 lots of IUI when I went for IVF at the Cromwell, London. They put 3 embryos back and voila, pregnant with twins.
10 months later, I gets pregnant again naturally!!! On my birthday!!!
I'm just asking coz I'm curious how many multiples are natural compared to fertility treatment.