Bfp, bfn, bfp, bfn

Keelay
Hi ladies, at a loss here.. Yesterday I got a positive on a strip. This morning, the strip was negative with fmu. Came home and did a rite aid blue dye, had a line. (5:30pm, 1.5hr hold), did another strip at 9 with a 3 hr hold (yes i am a poas addict), bfn. What gives?! 😫. Has this happened to you? Any ideas?