OK just looked at eBay for some OPK tests and I'm so confused! So many different options including a saliva microscope...really?! Just when I thought I had a handle on this TTC malarkey I've ended up more confused than ever! How many sticks do I need? Anyone got any advice? I'm a newbie, on cycle 2 since coming off 15 yrs on the pill and want to get to grips with my cycle before TTC.