hi i am new here, but my normal blog/forum cannot answer this!
I have taken 3 tests 2 today and one yesterday, all invalid. two lines a test line and a hcg line, all three the hcg line has been very dark, but the test window(to make sure it works) has nothing and instructions say this means its invalid. i have taken many a test in my time but this has never happened, ive had false positives, real ones, nothing at all come up, and negatives, but this is confusing. im buying a new brand today and testing first thing in the am but i was wondering if the test was invalid there must be a reason the hcg line came up? i have been using a cup and dipping not the pee on sticks( my aim is awful so i stick to cup and dipping) is it just the brand? am i maybe too far along for it to work? i dont know what to think.
extra info - 4 previous pregnancies (2 chemical, 1 unknown(drs couldnt work out why i miscarried), 1 birth of twins) last bad week(well month) was 60 days ago
It could be that the test line is so dark it has left no ink for the control line. Try diluting 50/50 your urine and trying again. If you still get no control line I'd try one last time with urine diluted 10/90.
Have you got pics of the tests? Which brand are they? Check the batch numbers on the test packages, are they from the same batch? Could be faulty.