Wondfo query - different batches

[DHsparkles24]

Hi, a bit of an odd question but do you reckon different batches of tests (eg Wondfo) can have different sensitivity?

I ask because as you can see in my picture attached, I've used the thinner wondfo tests and the thicker ones (depends which Amazon sends lol). And they've varied in darkness since around 22nd October.

And as I ran out of tests I used a new box this morning and just had a vfl when yesterday's was really dark. I doubt I've had evap lines on every single test :/

Anyone else experienced this please?

Thanks in advance!

I'm afraid I haven't experienced this. I've only tracked line progression once (for a week) and I used Wondfo that time. I did have to order a new box from Amazon half way through the week but there was no difference in the thickness of the actual strips and my lines progressed positively. Do you still have the leaflet that came inside both boxes? Mine says the tests are detect as little as 10mIU/mL on the leaflet. Could you check if that's the same on your new box?

If it is, could you perhaps be more hydrated this morning?

Hi, thanks a lot for your detailed answer! There's a chance I've had a bit of water this morning yes, but not too much. I'll have a look at the leaflets again and really appreciate your message 😊

Hi @DHsparkles24 are you testing with first morning urine? Same time each day?

My first pregnancy, my tests never got darker. I used Easy@Home and Wondfo, also did a Clearblue digital, but the lines were always the same. Sadly, it ended in a chemical.

My second pregnancy, I also got faint lines, but I ended up testing again with second morning urine (nothing to drink between first and second wee), and the lines were so much darker! Sometimes it can better when a lot more concentrated. Good luck!

Thanks a lot for your message! I'll take your advice ☺️