Same box of tests one negative and one with a fvl

Natalie

My first test is from this morning and the second one is just now. Not the best photos sorry. They are both from the same box, has this happened to anyone else and turned out you were pregnant? I got vfl on a wondfo test last week, all other tests were negative but they were higher hcg level detection and now this. I'm so confused. Can you all be so kind as to share your experiences with these tests. Thank you