When should I start to get faint lines?

[leesey]

Just started opks this cycle, only done 3 so far but just as a control group as I'm only on CD12. Will start doing them every day at CD15 so I can find out when I ovulate hopefully.
So obviously at CD7, CD9 and CD11 I've had no lines whatsoever, which is to be expected. When should I expect a faint line to tell me ov is approaching? I'm only using IC OPKs and now I'm wondering if I should get a better one for the first month of tracking ov so I can get a better idea.

I really want to pinpoint it this month, cos my cycles are all over the place and I have no idea how long my lp is.

Help appreciated!!

 

[itisbabytime]

it can vary, all depends on wen you ovulate that month. last month I had a faint second line for 5 days and then very positive tests for 2 days. How many days is your cycle normally? I hav been using superdrug and boots ones but i find them difficulty to read when they are positive because it has to be as dark as or darker so there is a chance of misreading it. When i think it is posotive i double check with a digital one which you cannnot read incorrectly. Also only dunk or pee on it for the recomended time as i was getting false positives the previous month!!

 

[Sandy Bee]

The day before OV you'll get a sharp LH rise (it doesn't occur gradually from what i understand).

 

[leesey]

Ok thanks ladies!!

Not sure how long my cycle should be as it's varied from 28 days to 34 days this year.

 

[leesey]

Started getting faint lines, but because the control line on this type seems to be really light, I can't tell how dark it will get before it's +

These were the last 4 days (CD13,14,15,16 but not in that order in the picture) and then today's.