don't know to mcuh about that type of test but i was realding somewhere that women in there 20's have peek fertility for up to 5 days so this coul be you. I also read int he dame article that some women in their 30's also experience this but that it is less common and that it has usually dropped to 2 - 3 days by this age. Hope this helps. I would just take advantage and do the bd all throught this time - good luck.
wish I knew more about it...I'm thinking of buying one myself...
Are you getting "HI" or the egg for 5 days? I would get "HI" for about 4 days and then 2 days of eggs and then another day or two of "HI"