Has anyone miscarried from stress???

I had just found out I was about 5 weeks 3 days pregnant when I got into a very emotional verbal altercation with a coworker doubting my competence. That evening I started cramping and by 2 am the next morning I had started to miscarry. I filed harassment since this has been going on for 8 months but now my work is saying that the two factors are not related and it is not stress that could have caused my miscarriage.

Has anyone else ever experienced anything like this?