Agreed, can you clarify what you mean by beginning and end of ovulation? You have your estrogen surge and your lh surge and then O, which all courses over days, but a 10 day hormone surge seems a bit much. Are you temping? Using opks?
Day 10 seems a bit early for an O, so I would go Day 34 which is probably AF is late. But I agree there is nothing shittier than testing early and seeing all those bfns. Every month I say I won't do it, but once you break the early testing seal there is no going back. I've had early bfps, but only when I was carrying twins or suspected twins. So my advice is to save the anxiety and money, and wait until af is due. FXed!!!!