Walmart 88 cent test ????

Kasondra • baby girl was born 11/21/16 💜 ttc for baby #2!

Are Walmart test known to always have a very very very faint line I’m only 9dpo so I know super early but everyone I have taken has super faint lines on them like super faint within time frame but so faint I can’t tell if it has color so I’m wondering if this a common problem with them ?

What test are best for super early detection I can go buy???