Hi all
Thought I'd share my experience with you in case it helps others. I'm 6+4 today and since last week (on my birthday!) I've been spotting; first pinkish blood when I wiped, then light brown spotting in a pantliner and brown mucous (sorry) most recently. Had really bad cramping pain and back ache yesterday so was thinking the worst.
Referred to EPAU yesterday, and just back from there now. Had an internal exam and apparently I have an ectropian (sp?) cervix - which means that cells which are normally inside the uterus are outside of it. It's quite common in women who've been on the pill for a long time the doc said, and it's the source of my spotting - yey!!!
They were still concerned about ectopic as I was tender on one side - so had an internal ultrasound and saw our little poppy seed! In the right place, and with a heartbeat 
So relieved, but probably won't completely chill out until the 12 week scan....oh, and my spotting may well continue throughout pregnancy so I better stop the knicker-check as it can't be good for my stress levels!