miscarriage bleeding please help!

I started spotting on Sept 12th. Dr appt on Sept 16th where they done a vaginal ultrasound and there was no baby. I started heavily bleeding on Sept 18th/19th... then went like a normal period for me. I completely stopped bleeding on the Sept. 26th. I then started spotting on Saturday Oct. 1st (5 days after bleeding stopped) and I spotted that Sunday and heavily bleeding on Oct. 3rd. By that evening on the 3rd it had slowed down and was between spotting and slow flow. I have been like that since Monday evening. Times I think it's gone away just to get a small amount of fresh blood back to spotting to almost gone then fresh blood. This is my first miscarriage. I'm not sure what is "normal" has anyone else experienced this? I'm not cramping or hurting anymore and surely it's not another period just being 5 days later of no bleeding... and this is not a "normal" period for me. When should I contact my doctor? Thank you for listening and for any advice. Just feel lost with this and confused. I just want my body to go back to normal and stop bleeding! Thanks!