If you have a long cycle, expect to use 20 sticks that first month since the machine starts you testing on day six and if you have not peaked by day fifteen it will ask you to test clear past your peak day and all the way to day twenty-five. Lesson learned after I had to buy another box of sticks to finish out month two when it started me testing on day eight. I think next month I will just time it so I only have to use half a box per cycle (15 sticks). Just start testing a few days later than the machine tells me to and stop testing after peak day will certainly cut down on stick usage and cost.

Cons -- After you have spent morning after morning looking at the lines on the stick and seeing which one(s) show, it is easy to predict what the machine is going to say. I sort of feel ripped off by having to use the machine to tell me what I can plainly see with my own eyes. But the machine makes it easy to keep track of cycle days and it is an easy reminder to test, so I am not overly upset.
I also find it easier and more accurate to use the "dip in a cup" method over the "running stream" method. Just use a disposable Dixie cup - much less messy and splashy.

I am not sorry I bought the system -- I just need to tweak it a bit so that the sticks actually last me for three months. Gave it four stars because it DOES what it is supposed to do, took away one star because it gets expensive to use as directed if you have any issues at all with your cycle.

My suggestion is to not rely too heavily on this machine and take the time to learn your body signs since sometimes signs come later in the day, even when you have had a low fertility reading in the morning. This is only an additional tool in natural family planning.

The Clear Blue Easy system was the fertility monitor recommended to us by several friends based on fast results (i.e. conceiving a child). We used it for the past 2 pregnancies and are now starting to try for our third pregnancy. It is very easy to use and both times it took 2 months to conceive. Like another reviewer, we also used it for a few months as insurance when we did not want to get pregnant. It is a little pricier than other systems but at least we know it works for us and several others!

Love my monitor and its so nice to find a good deal on the sticks specially with free shipping and a few cheapie pregnancy tests!!

I purchased the test strip by mistake. It is MONITOR test strips, and the monitor costs about $120!!

I have irregular periods so this product didn't work out that great for me. It takes at lest a cycle before it begins to read your body, my following period was early so it didn't know how to read me, therfore I never got a peak and it became a little frustrating. I'm sure people with regular periods will find it very helpful.