How dare someone exploit the benefits that are legally available! Employers can insure against the economic risk of having someone become pregnant. And you know what, just budget for that in your cost of hiring once you are big enough to have a full time payroll and HR person on staff. And start planning to give fathers leave as well.
If you (qua hypothetical business owner) can't cope with the fact that your employees are human being and that human beings have reasonable needs, then what good are you?