Kate Hudson is pregnant with a baby girl for the first time, and she’s personally found truth to the claims that carrying a girl makes you sicker than carrying a boy. The 39-year-old actress, who is also mom to 14-year-old Ryder and 6-year-old Bingham, says pregnancy has been different the third time around, and an increase in morning sickness is one of the ways.
“They say girls make you sicker and that, for me, has been the truth,” Hudson told People. The first trimester seems to have been the worst for the mom-to-be, who jokes that she wanted a “bed and a bucket” during this photo shoot in the early days of her pregnancy.
But is there any truth to the old wives’ tale? According to The New York Times, “severe morning sickness may indicate a higher likelihood that the baby will be a girl.” The Times looked at a study done by epidemiologists at the University of Washington, who compared 2,110 pregnant women who were hospitalized with morning sickness in the beginning of their pregnancies to 9,783 women who didn’t get severely ill. The women with morning sickness were more likely to deliver a girl, and those who were so sick they were hospitalized for three days or more were most likely to be pregnant with a daughter, with an 80 percent chance.
Other studies have come to the same conclusion, hypothesizing that hormones produced by female fetuses could be the reason those expectant moms are getting sick.
High-maintenance, even in the womb.
This article originally appeared on InStyle U.S.