Thanks Primrose. I just (like JUST) found out I'm pregnant (my first and still quite early on) and I've been trying to do research about this particular subject so thanks for the infomation, it's helpful. I just have to do a little more research on maintenance and doing it correctly. I want to leave all "white" out. I know I'm at increased risk for so many things with this pregnancy I have to be cautious, so I think this is the best plan. Research here I come. LOL.