Has anyone paid for an early scan?

Jill
I know mothercare does an early scan between 7-11 weeks. Just wondering if people would think it was worth it. 
I am currently 8 weeks pregnant but in March had a miscarriage at 12 weeks - from the size of the tissue, they suggested the foetus hadn't been growing since 8 weeks so naturally, I am a bit worried. My GP/midwife have tried to refer me but I haven't had any luck so far. It's £99 for a scan. What do you ladies think?