Hello, I use the first response ones.  You get 5 in a pack plus a pregnancy test for £19.99.  Sometimes you don't use all 5 opks in a month and can use the spare ones the following month.  Using opks took me a little while to get used to but I've found them to be v useful with charting my temps to pinpoint ovulation.

hi there am currently waiting for af to arrive as had bfn this morning and me and dh had a disscussion about using ov test next mth. Well i just wanted to know if any of you girls have used them and which ones you found the best and what sort of price they are. Also how many come in a pack etc? Thanks x