Kerry
Good luck. I found that just a few cycles of green tea got my EWCM working properly and then I didn't need it anymore. So see how you go and up your folate - at 38 it's a good idea anyway.

Dhea - it is all very confusing on the issue of caffeine. My fertility specialist said it makes no difference but I went and read elsewhere just in case and did give up coffee but not tea before conceiving. There is evidence that people drinking a lot of coffee can have delayed conception but the studies are now quite old.