Dark line but 'low fertility' ?

[Birdie]

I unexpectedly got a pretty dark line on a cheapy Opk at 6:45pm last night and I decided to back it up with a Clearblue dual smiley test before bed at 10:30pm - which came back with a circle meaning 'low fertility'..... However when I ejected the stick both lines were pretty dark.

This morning I got what I would consider a positive cheapy Opk.... so I'm confused how the CB could have said low (not even a fertile flashing smiley?!) a few hours ago...

Would love your thoughts on this.... I only have a couple of CB tests so was hoping to save them for when I was pretty sure I'd get smileys!!

 

[Birdie]

On the pic above I realise the test line from this morning doesn't quite look positive but not long after I posted it got much darker... I definitely consider this a positive...

 

[Emily0505]

I've had this too.

I think the cheapies are a bit more sensitive.

XX

 

[Birdie]

Ok thanks Emily - that would explain it. I just tried again with a CB as I got a +opk with fmu on an ic, and it's still showing 'low fertility'...... very bizarre!

 

[Emily0505]

I have had a negative digi opk in the morning and its positive in the evening. So even though it says to test once a day, it might be worth doing another later.

I don't bother with the digital ones anyone, as much as there's something very satisfying about seeing that smiley face come up, I'll be sticking with cheapies.

XX

 

[Lucy14]

Hi Birdie, hope you don't mind me jumping in, my ic opks don't ever match the test line and never as thick, I would alway double check with a digi. I have un explained infertility due to pcos, digis helped lots and I'm now 5 weeks xx

 

[BabyFrog]

I know I am crazy late replying to this, but thought it might help for future tests...

The clear blue digi dual hormone takes your first reading as a baseline, and then only looks for an increase, so if the first time you used it was when you had a positive it would never find a peak because there wouldn't be an increase if that makes sense?

You need to use a dual hormone from earlier in the cycle so it knows what is normal for you before it looks for your surge. It's pretty clever actually