Can drinking a lot of fluids right before testing with an opk delute the surge ?? I tested almost pos yesterday about 2, then I retested at about 8 & it was light again , but we had just eaten dinner about an hour or so before and I had a lot of sweet tea with my food . I'm going to retest in a little bit and see what it looks like today . But I was having I pains last night , and then again right now .