Just a word of warning with them, if you have PCOS (all good if you dont), they can actually show up a false positive, I have got it and I did them and I ovulated for like a week and a half lol. Also read the instructions quite well, they are not like preg tests, most of the time they will show up two lines but the test line has to be the same colour or darker as the control line :) there is a website called (I think) peeonastick.com they have some really good q and a on there :)
Hope this helps :)