I hope she never gets pregnant again.
Not a chance. Susan Smith had a bona fide motive for disposing of her little darlings - she wanted to marry a wealthy man who didn't want her 'baggage' from her failed marriage.
Andrea was nothing like that, loved her kids all the way up until she snapped, tried to get help, and had no motive at all to kill them. There was nothing in it for her if she killed them. Weird voices told her to do it. Go see the movie 'A Beautiful Mind' to understand how real those voices seem to people who are insane. It's no plot to kill kids - it's mental illness.