Pregnancy test

Ok... So I took a pregnancy test this morning and tonight... It's one of those cheap pregnancy test from ebay... Sooo I looked at the test later on and I realized I could see like a wicked wicked faint line but I don't know if it's just an indent of where the "positive" line would be but idk I haven't seen that before idk?! I am 5dpo 2moro would be 6 idk maybe I'm just overthinking it... Has this happen to anyone else?