Washington D.C., April 19 -- : Working women feel like they are pushed out of their jobs after they get pregnant while on the other hand new fathers often get a boost in their careers, recent findings suggest.

As part of the project, the researchers studied two long-standing theories on why mothers are more likely to leave the workforce than fathers.

One suggests pregnant women feel "pushed out" of the workplace. The second indicates moms decide for themselves during pregnancy to "opt out" because of changing personal and career values.

The findings, published in the Journal of Applied Psychology, confirmed inherent biases against expectant mothers that make them feel unwelcome in the workplace. This is the first study to show that women...