Why do I still feel like I’m pregnant?

I know everyone will say go to the doctor and I will, I m waiting for a call back for an appointment.

So on September 4th I had a dark BFP . And then again on September 5th, FMU.

I was like this is happening again for the 4th time.

Then on sept 7th I noticed light pink discharge. I didn’t worry too much, put a pad on just in case and went to sleep. On sept 8th I woke up with heavy bleeding like a period, bright red. I had no cramping or pain, just bleeding. I went to the ER, they did blood test my hcg was low only 13. They did an ultrasound vaginally and said they couldn’t see anything. I was discharged and the doctor “suggested” I was miscarrying , he said “blood work and ultrasound suggest it’s a miscarriage”.

I went home bled some more for 4ish days then the bleeding stopped completely. It’s been only 6 days since the doctor suggested I miscarried, and bleeding stopped around 3-4 days. Is that normal? Am I just in denial that it was a miscarriage? I didn’t have any pain, cramping or anything. Currently, I still have pregnancy symptoms including tender breast, severe headaches, and nausea. I think I’m just overthinking everything because I never had a miscarriage(i have 3 kids). Anyone would like to share their experience related to this?