Pregnancy Test

Karinna 🤰🏻 • 19 y/o ❤️ Married 💍 Expecting Baby #1 👶🏻 Its A Girl 💖

I have a question? Does the darkness of the positive line have anything to do with how far along you are?? Because i see so many that find out days after their missed period and it is light but when i tested it was very dark? And it had been a while since my last period.