Hi

Unfortunately at 6 weeks emergency is unlikely to help much.

i have a great GP and went to her when I had spotting at 6 wks - how long have you been spotting for? Have you been ahem intimate with partner very recently? Sometimes this can be a contributing factor.
Midwife I think unlikely to be able to do much either. But,, perhaps GP could send you for a scan - at 6 weeks they should be able to detect if any problems with formation and it is likley to include/be internal.

Good luck and lots of stickyvibes for you!!!