Positive then negative

I received my very faint line last night and retested this morning and got a bfn different brand in tests first respons last night Vvfl andWalmart 88 cents  So my last pregnancy was in March had mc but I got my bfp with the Walmart and bfn with first respons so now idk if I rest rest with the first response again since af is
2 days away , should I just go with the first respons