Last month was my first month TTC. I bought a box of own brand ovulation prediction test strips from our local supermarket - 7 test strips for £7 - and started using them from around CD 5. Of course, I needed a second box and a third... So I spent £21 on OPKs, not to mention the Pg tests!! So, this month, I decided to invest in 30 strips for £3 from the internet!

Well, I'm not sure they work!! Last month, the supermarket own brand test strips were stark white for the first few days then the test line gradually got darker and darker for over a week on the run up to O day - then, on the day before my temp rise, it showed a decent positive result. This month, with the cheap ones, I'm consistently getting stark white. I'm on CD 15 mow and I've only ever seen a stark white result (with a control line, of course). Last month, I didn't O until CD22... but I can't help but worry that the cheap ones don't actually work...

What do you all think? Have the internet ones worked for you??