Just to add - I find it unfortunate that many women in the workplace do not seem very committed to their career - the fact that many shout about their rights to have children and be committed to the children (which in itself is an excellent thing) at the cost to their job quality and employer.
"I'll have kids whenever I want, you the employer has to work around it" is not an attitude to have if you are properly committed to your career.
Before anyone accuses me of being a woman-hater, I happen to be one of them.