Georgie:
Stephanie Speilman was on herceptin when she got pregnant with one of her children (her 3rd??). There isn't a lot of information, I know the vaccine trials want you to be sterile to qualify, but vaccines stay in your system a lot longer. Her baby was fine. You might go to this site and shoot her an email.
http://www.jamesline.com/waystogive/funds/spielman/
The story:
http://www.newsnet5.com/specialassig...47/detail.html
Also, there was a lady on the YSC site named Karen who hasn't been on for more than a year. She also was on herceptin when pregnant. You might try sending her an email or PM:
http://www.youngsurvival.org/blocks/...t=ST&f=6&t=207
Her son was also fine, just delivered early. I think the same thing happened with Stephanie. Hope that helps.