In regards to your 6/22 post Did Eve have hundreds of children? a woman cannot get pregnant every 9 months like you thought because of bleeding up to 4-6 weeks after the baby is born which means a pregnancy may take place every 10 months.  Adam lived to be 930 yrs. according to Genesis 5:4. So if we assume that Eve also lived 930 years, 930 yrs. x 12 months in a yr. = 11,160 months divided by 10 months for every child born = 1,160 children assuming Eve did get pregnant and bare a child every 10 months. And twins appearing in 1 out of 86 births = 13 because 1,160 divided by 86 = 13.  So that would be 1,173 children altogether.