Blank control window?

Question

If a pregnancy test control window has no line, not even a VFL, is the whole test wrong? I just took my first test ever today, and while it said negative, the control window remained blank.

Answer

It would be invalid.

Answer

Hello ladies can I ask what it means to have a very dark line for pregnant and a faint control line? Is this test invalid?

Answer

If the control line did not appear, then its invalid.

Answer

Yeah, that's a faulty test.

Answer

Maybe it's night shift brain and I'm not fully woken up but can you post a picture of what you mean?

Blank control window?

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