I interpreted "she has a baby" to mean "she has a baby", not "she's pregnant". (Not that denying somebody a job on the basis of family status couldn't support a potential action.) But either way, there does not appear to be any evidence that the baby has something to do with the withdrawal of the offer. Sure, get a free legal consultation, but be prepared to produce something more substantive than "there are rumors" if you want the lawyer to bite - the evidence cyjeff suggests of any discriminatory pattern in hiring, the source of the rumors, why the source would have special knowledge of their hiring decisions, etc.