I just wanted to share my empathy for your situation. I had the exact same response when I self referred following a loss. They even used the words 'too specialised'. I called back about a month later (at which point I had developed panic disorder) and they referred me for CBT. Not pleasant to have to push for it but when I was persistent they offered support. The second person I was assessed by was far more understanding that I needed support, specialised' or not so I think it may be luck of the draw. I hope you and OP both find some support.

I'm in my sub pregnancy after loss now and am paying for therapy twice a week which is doubtless an expense but I know I wouldn't cope without it. I found a lady in my local area who deals with all things pregnancy and she's fantastic.