Hi LJ
Don't worry, you are definitely not alone in this, I too had a miscarriage and I feel exactly the same way, infact we've only had sex about 4 times since we found out I was pregnant and I'm now 13 weeks!
I didn't know a miscarriage could be sex related, did your doctor tell you this was the cause of the miscarriage? What does it actually mean? If you don't want to talk about it that's fine, just got me interested as I've never heard of that being an actual reason.
Take care
xxx