Im confused

So I had what I thought was a chemical pregnancy last month, so I was unsure when my next period was coming. I tested this morning, after 5min I thought I saw a vvfl but I also started bleeding, its a light flow, few little cramps and a small clot. Well I looked at the test again about 10 min mark and noticed the line got darker. That's the confused part, I'm bleeding but my test looks positive. Has anyone had this happen???