The few days after ovulation are the critical time for pregnancy. If a woman fertilizes nine days after ovulation, she may become pregnant on the first day of the next month. However, if a woman doesn't fertilize until ten days after ovulation, her chances of becoming pregnant decrease. Therefore, women should consider the number of days after ovulation when choosing the best time to have children.

However, if a woman doesn't fertilize until ten days after ovulation, her chances of becoming pregnant decrease. This is because a woman's menstrual cycle is not completely regular, and a woman's eggs can survive for a period of time. In this case, women need to take steps to ensure that they can become pregnant.

Women should choose the best time to have children. This means she should wait until the middle of her cycle and then fertilize when she is most likely to become pregnant. If a woman is fertilized in the middle of her menstrual cycle, her chances of becoming pregnant are high.