When to start using OPK

Ok so according to yourdays.com I will be ovulating anywhere from 12/9 to 12/14...so I went out an bought a 7 pack digital OPK when do I start testing ? Can I test every other day so I wont waste them and get more use out of them??

Re: When to start using OPK

read the instructions it should tell you. usually like two days before I think!

Re: When to start using OPK

It depends on how many days your cycle is, for instance mine is 27 days so I have to start on CD11.They don't want you using up all your sticks before you need to. GL!!!

Re: When to start using OPK

I usually start testing around day 10 and i have a 30 day cycle. Some months I ovulate earlier than others so i like to make sure I catch it! That is what happened while ttc my son....I was waiting to long and i missed my O. I got the Clear Plan and within a few months I was pg!!!!!!

Re: When to start using OPK

If this is your first cycle using them I would follow instructions in the box. Once you get to know your cycle you can kind of figure out when to start based on CM. Most cycles I only use 3 OPK's at most

Re: When to start using OPK

I am using the ClearBlue Digital OPK's & based on my cycle & the instructions in the box, I start testing on CD14. I have a 30-31 day cycle. At most, I will use 4 OPK's in one cycle. I am set to O on the 10th, but I will start testing on the 7th