MC blood color

B

I had a miscarriage this weekend, we had known for exactly a week that we were expecting baby #2 before losing it. It has been devastating. I saw my doctor the day after I started bleeding and she said everything seemed like it was happening naturally. I continued to heavily bleed from Sunday-Tuesday bright red fresh blood, and then it started to turn brown. Today I noticed it’s a little darker than brown? Almost black? And after a day of having “dead colored blood” I am now having fresh red blood again? Is this normal? The cramping lasted for about 3 days and completely stopped until early today I had some pain on one side, it’s gone now but the fresh blood appeared after the pain. Any advice would be appreciated.