> An additional topic related to this that goes undiscussed is the massive increase in twins That's not just the realm of IVF. My wife and I have fraternal twi

> An additional topic related to this that goes undiscussed is the massive increase in twins That's not just the realm of IVF. My wife and I have fraternal twins. She was 35 when we conceived. It turns out that as women approach menopause they may drop more than one egg during ovulation. This effect is noticed dramatically at age 35. I think I recall reading that your chances of a natural twins birth goes from < 1% to > 4% at age 35... And, of course, in addition to that, once you have your first multiples pregnancy the odds of any subsequent pregnancy being a multiples also goes up.