More Women Charge Bloomberg LP with discrimination describes how the U.S. Equal Employment Opportunity Commission has used questionnaires to women who have left Bloomberg and who have taken maternity leave to find 58 women who had their pay cut or were demoted or denied opportunities because they became pregnant while employed at Bloomberg.

This is such a tricky issue to navigate on a practical level for women. On the one hand, being open and honest about pregnancy seems the best way to behave, but that’s in a perfect world. In the real world, particularly financial services, this is part of a much larger pattern of pregnancy and maternity discrimination.  

If you’d like to read more about pregnancy discrimination, the best resource I’ve found is the U.S. Equal Employment Opportunity Commission’s Facts about Pregnancy Discrimination.