A bit confused

[KatD]

I got some CB Digi OPKs today and tested one along with my usual OPKs....but now I am so confused. I understand that both OPKs are negative, I agree witht that but look at the difference between the two brands....

This was taken (the pic) within the time frame (5-10min)



This was taken (the pic) after 10 min - see how the CB OPK got lighter???



Any thoughts on why there is such a difference and does this mean that the CB digi is less or more reliable than the ones I have been using??

 

[Sunflower1]

I wouldn't interpret the CB digi yourself - the machine does that. I got a peak last month on CB digi but when I pulled it out it didn't look positive to me at all. But I did ovulate 12 hours later.