Confused... BFP THEN BFN

Chelsea • i have been with my boyfriend have been together 4 years we have a blended family, together we have 2 kids & 1 Angel baby, i lost my right tube hope for a bfp soon..

Took the dollar store test around 430 pm maybe 2 your hold then the FR about a hour later... fr was 100% negative but cheapie test was 100 % positive..

Am I preganant?