Very confused, Bleeding.

My app says I should be 4 weeks. I was doing so well. I didn't have implantation bleeding. Then I started Bleeding tonight. I decided to take a pregnancy test to see if it said I'm still pregnant. I thought it was going to tell me not pregnant and that would show me I had a miscarriage. But it showed up pregnant with a 1-2 weeks. Could it be it showed me that because of the pregnancy hormone still in my blood? I'm going to see a doctor in the morning. Not sure if it's even worth seeing a doctor if they're just going to tell me to go home and there's nothing they can do. Any advice please?