miscarriage and bfn

Jessica

So I, very unfortunately, suffered a miscarriage at 5w4d yesterday on 1/9, I've heard people say to take home pregnancy tests to see when you're more or less done producing pregnancy hormones and most people say it takes 2-3 weeks. I took a pregnancy test this evening, expecting it to be dark but it's completely clear. Has anyone else had this happen? What could be the reason?