fingers crossed that it is just a cyst, of course... and that's still very likely, don't forget.
SKG, where are you in the country? Your docs do seem to be being a bit shite, tbh.
If the blood from today was for an HCG test then they should have asked you to come back on Saturday and again on Monday as it's really pretty essential that the bloods are monitored serially every 48 hours. In an ongoing pregnancy you'd hope that they'd be increasing by at least 66% every 48 hours (although as i have mentioned before, i've had an ep where it doubled beautifully and a successful pregnancy where they went up by 3% so god knows really).
the only sure-fire way to find out if this pregnancy is in the uterus is to do a vaginal scan.
Can I tell you the only thing that worries me? You reckon that you are nearly 6 weeks, but didn't i see you say before that you may have got pregnant the month before... if there is any chance that you have got your dates wrong that does change things rather dramatically... it would mean that the MAP wouldn't be implicated so it makes the chances of an ep lower, but on the off-chance that it is an ep makes things worse, iykwim?
if i was you i'd phone the EPU again, tell them where you're up to, tell them that you aren't 100% on your dates, tell them that you've looked up the EPT website and that you would describe your bleeding as prune-juice like (classic symptom, although i always had bright red blood so again it's all bollocks). And you really need to find out if that blood was sent off to the labs, and why you haven't been asked back in 48hours.
sorry to put all this onto you, SKG, but you can't be too careful. and a scan on Monday... i think that's too long to wait. if they have a trans-vaginal scanner then you don't have to wait that long.