Pregnant, breaking down and relapsing

I have general anxiety disorder and I'm 35 weeks pregnant. My fiance dumped me two months ago, my parents are on holiday in another country, my best friend pulled out of being my birth partner and I've just had a relapse. Constant crying, anxiety attacks, wanting to drink, freaking out coz I have to be a single mum. I've tried calling numbers to talk to get support but their all busy.

I feel lost. My support network isn't anywhere to be found. How am I going to cope with a baby?

*Update* Thank you for your kind words. Went to A&E; and got loads of support. Feeling better for the moment. Baby is okay too.