Older women produce higher amounts of FSH (follicle stimulating hormone) which increases the chance of dropping multiple eggs. However, fertility rates also go down as women age, so waiting too long can also lower the chances of falling pregnant at all.
When two or more eggs drop during ovulation. This can happen due to genetics, menopause, age, taking cassava and a range of other hormonal reasons.
6-In The Family
If the woman’s side of the family has twins in it (due to genetic hyperovulation), her chance of conceiving twins is higher.