My two cents - this is just my experience and opinion, not recommendations as everyone's different and has different preferences!
I started with First Response sticks - but got a strong positive every day from very early in my cycle and for weeks thereafter. The sticks may have been defective, or someone else said the same thing happened to them possibly because the sticks are more sensitive than other brands.
Then I switched to the cheap/bulk sticks, I bought them off Amazon, I think you can also get them on ebay. They're the kind with no casing, just the testing strip. Personally I didn't like them, found them very inconvenient, and difficult to interpret.
Then I switched to Clearblue Digital, some bought for a small fortune at the pharmacy, and then much cheaper from Amazon. I love these, so easy to use and easy to read - love that smiley-face!
At that point I also bought a Clearblue Fertility Monitor and sticks, both again from Amazon, way cheaper than the pharmacy. I really like it, as it reads two levels in your pee (other sticks just read one, LH) so it tells you when you're building up to your surge, often days in advance, so you can get a head-start. It also gets to know your cycle after a few cycles, so attunes itself to your body. This is what I use regularly now, though if I have reasons to question a particular cycle I use this as well as the CB Digitial sticks - in my current cycle they disagreed as to what day my surge was, so who knows which was correct.
Enjoy the world of POAS and OPKs!
xXx
