2 days late, 1 positive test, 4 negative

Danielle

I took a test Saturday night. It was a positive, faint, but definitely there. Took two tests the next morning with FMU and they were negative. Just took two more afternoon tests today (4:30) and they’re negative. Is my hcg higher late at night maybe? I’m kind of confused. Should I test again tonight? The picture is the positive. Faint, but had pink to it.