I ordered them off of babycreation.com. They were pretty cheap, and they worked great for me. You can also order the 2 tests together, which makes it nice. Good look with them, and let me know how everything works for you.
Try ebay,some of the cheap ones not that good,you can buy likes of clear blue etc probabley for the same price,good luck.
Anyone else have any suggestions? Please help.
I went on ebay and for $28 including shipping I got 4 brand new never opened boxes of 20 each First Respsonse OPKS (total of 80) They weren't even near their expiration dates either.
You can also go to peeonastick.com and there is a section that tells you all about opks.