Clearblue Fertility Monitor - M button

Hawkings_Boots

I know a few people on here have used these (having read all of the TTC threads which took about 2 weeks!)

I'm starting to use it for the first time this month and get conflicting instructions as to when to set the M button.

Is it when you start getting the horrible brown spotting or full flow?

Thanks in advance!

Nicki

It's full flow, but actually the most important thing is to be consistent about when you do it!

The monitor works by checking your pee on set days of the month. Over the course of a few months it will work out which days are most likely to be the right ones. So if you always start the monitor with DBS as day 1, and ovulate for example 14 days after that, then that's what the monitor will start to predict. If you wait until FF, with the result that your ovulation is on day 12 or 13, then the monitor will come to predict that. The machine always asks you to test your pee from about 2-3 days before it predicts that your oestrogen levels will be starting to rise, so it is normal to get a few days of low fertility readings, then a few days of high, then 2 days peak and 1 day high. If it doesn't start to see any changes in hormone levels in the first 10 days of testing, it will ask you to keep testing until it does. So you may end up using 20 sticks in the first month rather than 10.

hth

Hawkings_Boots

Thanks for that! I understand what you mean about consistency!