Oh God, that's so annoying sebs! Does a peak mean that ovulation has come and gone? Or does it mean that the egg popping out was imminent- maybe you caught it this morning? You could also have some sperm surviving inside you from CD7- I know, I'd never rely on that myself, but fo you remember smiler? She thought she ovulated 6-7 days after last DTD- and got pregnant! (I wish you'd come back to update us smiler).
I've heard the thing about the milk Annie, but I'm sure there are far far better ways to raise your protein intake- when I heard that I thought "Well, they might be fertility experts, but I don't think they know much about nutrition!" I have a deep suspicion that too much pasteurised cow's milk isn't too good for you.
Interestingly, I was on a low carb diet (to lose weight) when I conceived very easily at ages 35 and 38. It's giving me food for thought (as it were...)