So question mommas!

Nicole🌻 • 19 years old, anxiously awaiting the arrival of my little goddess🌸🌺
So after freaking out for a few days from not having symptoms I took a test at 7weeks n got the faint positive from the top test, then just for shits n giggles(my older sister had a pregnancy scare n took one so I said why not n took one too) n a beautiful strong dark line came right up before it was done soaking like it has been since 4weeks, is there a reason it came up fainter before? I did put 5 drops on the first one n 3 on the second like the directions say, would that make a difference? First time mom, full of questions!