Question

MAMA LLAMA 💕💙🦙
This is my first pregnancy so please no negative or rude comments- 
I took a pregnancy test on Monday and it was positive! Lines have been getting stronger each day. Today I decided to test again for kicks and giggles and the line was really, really faint. I've had about 50+ oz of water to drink today. Can diluted urine really affect the test that much???