11 days late, negative clear blue digital but faint line on boots test

[Tripleppp]

I am 11 days late, have done so many tests as I have felt like I am pregnant. I have an 18 month old who I tested positive for on a day before my period was due. I have so much thick creamy discharge ..sorry tmi. I have back ache, cramps, mood swings, nausea but the only test that has shown any sort of line is today, but then followed by a not pregnant clear blue. I stopped my pill 3 months ago and my periods have only been a couple days late apart from this one. Shall I retest the clear blue in the morning? Is there any chance I still could be pregnant? Worried something else may be going on.

Here is the test I did this afternoon before the clear blue I had very weak urine and not much of it

Heres another imagine in different light

I think you should see your doctor. Digital tests are less sensitive but they should be picking it up if you're 11 days late.