Is this a miscarriage?

I was due to start my period Tuesday 1/24 I woke up to very heavy bleeding and extreme cramps all day. I don’t usually have a heavy period. Tuesday evening i passed this

And I didn’t bleed the rest of the night. I bled a little and had cramps and lower back back the day after, and now I am still lightly bleeding when I wipe. I have spoke to several people that I know have had miscarriages and they all say this is exactly what it looks like and I have all the symptoms. After doing the math, I would’ve been about 4 weeks, but I have yet to get a positive pregnancy test. I really don’t feel like this would be my period because it is nothing like my usual periods. I usually have very light periods. And looking back at the past few weeks, I also have been extremely emotional and tired and I had very sensitive breasts.

Does this look like a miscarriage or chemical pregnancy?

I am going to the doctor in the morning, but I would like some other opinions as well so I can be maybe a little for prepared when I go to the doctor.