I drank green tea everyday......ate a roast beef sandwich everyday (to make my uterine lining thinker).......got positive opk and bd'd 2 days in a row--had to miss the 3rd day.
I'm trying not to obsess.....but I can't stop thinking about it.
Also, I would read up on drinking green tea during TTC. I have read that it could hurt your chances (depending on how much you drink, but why chance it?).