Hi everyone
Firstly just want to say a big thank you from DP and I for all your support, it's been really great 
I'll not stay around long as just lying low for a bit, but here's an update:
Went to the Dr yesterday as planned and he was concerned I might be having an ectopic so sent me to hospital, where I remained all day yesterday. The Dr's there found my cervix closed but by that stage I was bleeding heavily and passing clots (sorry if TMI) so in my mind at least I was definately miscarrying. I had a scan and the good news was everything looks ok (ie no cycts or anything) and the bad news was there was no sac left (as there wouldn't be). Eventually my bloods came back adn revealed they had dropped significantly to a non pg level (and yes NikkiWhyte- the originals definately showed I was pg, as had 5 HPTs). So although traumatic, the m/c seems complete although I am still cramping lightly and bleeding a little. Mostly I feel washed out, unbelieveably tired and grief stricken. 
MY DP has been fantastic through it all and I could not have asked for more caring and empathetic hospital staff. They have reassured us that as far as ttc goes, not only did we concieve 'very quickly' (4 months- although no contraception for about 8 months) but that there was no reason at all to suspect we wouldn't again. So that was reassuring too although of course ttc at the moment is the last thing on my mind.
RIght now I'm gonna really look after myself and just chill out completely. I've been doing far too much for far too long and it's going to stop. Not that that caused me to m/c but it's been a bit of a wake up call for me (not trying to sound like Dr Phil here).
Anyway, that's the news; am physically ok but emotionally exhausted. I haven't been online since yesterday morning so to log on and see all your heartfelt wishes really meant a lot.
Thanks again. Will be back soon. x x