I bought them of the internet and they came with a sheet of instructions. I know you wee on the sticks and then leave them but does anyone know how long they should be left for b4 looking at the result? My sticks were cheapo ones, there is a wavy blue line at one end and a hand picture at the other. The wavy end goes in the wee and 2 lines appear, which one should be bolder if a lh surge is detected?
I am using these in conjunction with the expensive Clearblue in a desperate attempt to bd at the right time.