VVFL??

Neet

What does VVFL mean? I know it means very very faint line. Does it mean Am I Pregnant?? Or chemical? How long does it take to show a fully dark line?? I’m 13 DPO 1-2-19 at 1-3-19 I will be 14dpo. I will be traveling to India on the 4th so I want to know.

These are 13 DPO