I just started using the monitor this month and I know it's not the most accurate the first month you use it, but I'm wondering how many "high" days people usually get before their "peak" days. I'm trying to decide when to do AI this month. I'm on cycle day 8, got my first high reading this morning. Usually I ovulate between days 14-16 and one cycle I ovulated on day 19. I only get one shot per cycle because our donor is 5 hours away. Last month I waited until I got the LH surge, but I think by the time I drove down there the next day I was already too late. That was cd 15. My options are to go this Tuesday (cd 10), Thursday (cd 12), or Saturday (14). My original plan was Saturday but after getting a high reading today I'm thinking that might be too late again. Maybe the vitex is making me ovulate slightly earlier in the cycle? On the plus side, my luteal phases have been 14-15 days consistently. Anyway, any experience or help would be appreciated! It sucks only having one chance per cycle!!