How about funding your own maternity instead of the company and/or the taxpayer? Nothing personal ma'am but as a potential employer I cannot risk such labour costs so just dont employ.
WorkingHard, that sort of attitude can get you in an unbelievable heap of trouble. If you refuse to employ someone on the grounds that they could be/could get pregnant you are liable to prosecution under Sex Discrimination laws. You are not even allowed to ask during interviews whether it is possible that they could be pregnant.
KatieKoo, good luck with the whole family thing.