One study revealed that women who experience stress and want to get pregnant were more likely to give birth to a baby girl. A study conducted by Oxford University revealed that women with higher levels of cortisol are most likely to give birth to baby girl instead of expectant mothers who do not stress.
Cortisol is a steroid hormone produced in response to stress. The scientists also found their highest level cortisol only 25 percent likely to give birth to a baby boy.
The study examined 207 women in the months before they become pregnant. The experts found that women who experience short-term stress and fatigue will take longer to become pregnant.