aamy - I have been taking multi-vitamins and fish oil, but I've heard a lot of different people who are taking lots of different things. There is still a chance for you to fall pregnant without any intervention. You should come join us in the 6+ months TTC buddies chat. One of our memebers just got a BFP after I think it was 7 or 8 months.
If nothing else we might be able to give you some support and it will let you know you're not out there trying on your own.