Faint line, is it still right?

Joanna • I am 22 years old, nursing student, and so in love with life and it`s twisted ways. Peace, love, and light guys! ✨
So, if I took a test and I see a vf line and I hold it up to the light and I see the line clearly, does that count?
*ive seen a lot of pictures where women hold their tests to the sunlight and people are like "congrats", so it still counts? 
-thank you :)