Pregnant or Miscarriage!?

OK so my last for sure last period Was December 2nd and after I finished my period I wasn’t sure if I wanted to TTC so I took two birth-control pills and then changed my mind and stopped. A few days after that I started bleeding again I just assumed it was from stopping birth control. Then my next period was supposed to be due December 27 and I didn’t get it That day so the following days after that I took three pregnancy tests and they were all negative so I just thought maybe I was skipping a period Due to the birth control situation so i didn’t think anything of it then this past Wednesday on January 17 something told me to take a test so I took one and it was positive it was a digital one , after I took the digital one I took a regular blue line one and it was also positive except it was pretty faint. I had no idea I was even pregnant or how far along I was so I decided to go to the hospital to see if they were able to tell me how far along I was only for them to tell me that the test that they did there came back negative so they took my blood to check my levels and my levels were at age 12 and the doctor told me that I was having a miscarriage I have never had a miscarriage before so I don’t really know what to except. on Thursday, January 18 and yesterday I took more tests that were still also positive some digital, first response and dollar store ones and another blue line one and they were all positive the dollar store ones were the most faint but you can definitely still see a line. now this morning on Saturday, January 20 I woke up to some brown spotting I am not sure what to think I’m not sure if I’m having a miscarriage or if I’m just super super early in the pregnancy because I ovulated late and didn’t know. these tests are the ones I took in

order from Wednesday to now anybody with any opinions is greatly appreciated