Is morning sickness worse with a girl?

Women that carried a female fetus, as opposed to a male fetus, reported significantly higher frequency of NVP during the first trimester of pregnancy. Further research should evaluate both the proximate and ultimate causes of this relationship.

The following statement is likely to offend about half the people reading this: Girl babies may cause a greater incidence of severe morning sickness among pregnant women than boy babies. And following that line of thought, if a woman is very sick during her first trimester, should she just go ahead and paint the baby's room pink? Well, don't get the color palettes out just yet.

over one million pregnant women that shows those who suffered severe morning sickness during the first trimester were more likely to have girls than boys. This was not typical morning sickness but a condition called hyperemesis gravidarum, which is morning sickness that's bad enough to require hospitalization.