I have heard also that caffeine can reduce fertility but im not sure exactly by how much....
I did find that while pregnant that you should limit caffeine to one cup of coffe a day. More can increase chances of a late first trimester or second trimester miscarriage.

Okay I have been trying to do alittle research on this-i am interested too b/c im ttc and I drimk like 3-4 big cups a coffee pluc diet pepsi 2 times a day usually. Thats quite a bit! I love my coffe and my ciggerettes! Which are both bad...I found somewhere that caffeine can reduse fertility by about 27% and smoking almost 50%...Gee add that to only a 25% chance each month of conceiveing and no wonder it seems to be taking me forever to conceive!!!

But then again people get pregnant all the time without even trying so who the heck knows...I think part of it is just out of our hands you know??
(by the way-once I get a "posative" test all bad habits are gona have to go!)
good luck to you...Are you ttc I assume?

Thanks for info on caffeine. Hope u ttc soon ~baby dust to u

I know that caffeine is like a vassopressin - it constricts blood vessels & it speeds up your heart - because it constricts the blood vessels it causes less blood to go throw your veins (that's why your heart needs to beat quicker to make up for the lower amount of blood circulating around), so, I am guessing...That b/c there is less blood (which means less oxygen) going to your ovaries - it will make it more difficult to conceive b/c of the lacking oxygen & blood supply.

Long and short, cut down the caffeine, it's not good for you anyways:)