These damn lines!! ??

I tested With a Walmart 88cent test got a faint positive very faint. Woke up the next morning and tested with a first response it was so faint it was barley there. So I asked hubby to bring me another test diffrent brand and he got me a store brand from the supermarket those were 100% positive it wasn't faint but it wasn't as dark as control line both of them came out positive. So I have extra first response and figured that since those cheap ones are coming up dark maybe I will get a decent line with fr. The line was so faint again ughh im going crazy! I think that box was messed up test lol