Positive test then negative then positive

Lexi

I took a test because I was exhausted. It was positive. Lines and I did a digital… Waited until the day of my missed period. Went to the doctor- my doc just does a preorder test no blood panel- theirs is negative- I went home and retested- negative- I thought maybe another chemical. Had the flu. Now my test is positive again. This is in 1 week span. Any advice? Opinions?

This test is from 30 minutes ago. Positive line showed up within a minute.