Maternal age: Your possibility of getting twins or even more infants increases with advancing age. Females above 35 years create more FSH (follicle stimulating hormone) than more youthful ladies. This hormones permits the ovaries to produce eggs for ovulation. The bigger the hormone amounts, the greater are the eggs released during ovulation, thus causing numerous fetuses. More pregnancies: If you had multiple pregnancies prior to, there clearly was a high possibility of creating twins.