miscarriage due to stress after being raped

I had a miscarriage 2 years ago due to the amount of stress I was under at the time. I was raped and didn't know if the baby was my rapist or my boyfriend as I'd had sex with my boyfriend on the Monday then was raped on the Saturday.
Anyway I lost the baby 😢 it was a bittersweet situation, i was only around 5 weeks at the time. I put in for criminal injuries compensation and I've been awarded £11,000 but because I can't prove that the miscarriage happened because of the stress they will not pay out for that. 
They have my medical records from the doctors with all this in and because I didn't know who the father was they won't pay out on that either. 
I am happy with the 11 grand I've got because I've never had any where near that amount and it's going to help with a lot of things.