Walmart Test vs First Response?

Kristen • -Mommy of a 4 year old & 2 angel babies💜-Expecting my Rainbow in March 2017!
Has anyone gotten a negative test on the cheapo HCG ones and the cheap Walmart pregnancy test, but got a positive on First Response Early Response ones? I have 4 days until my period and they're all negative, but I have a First Response one that I'm going to take in the morning. Prayers would be appreciated. 💜