How many MC in a row have you had?

This is not a fun poll, I’m sorry. I had my 4th miscarriage in a row about a month ago. All naturally conceived and went 6-8 weeks before growth stopped. Tests of all kinds are not showing any reason for them but they keep happening. Drs. just say to keep trying but can’t tell me a chance of another MC or full term pregnancy. So I need to know how many times other couples kept trying just to get a better since of what I might have ahead of me. Please comment if you ever succeeded after being “diagnosed” with unexplained recurrent miscarriage.

I feel so lost.