Hi,
I started this thread, and if you check the date it was sept 2007, I have just logged back in today for the first time after finding myself pregnant for the second time, and I hope I can provide you some comfort.
I bled from before I got my BFP until approx 26 weeks, my little boy was 2 on 10th June and as worried as you are stay positive, demand a scan as soon as it is viable, and take it one day at a time. It really does sound like my bleeding, if you have no pain and it remains a browny/pinky colour it will probably settle down. I took a few days off work as to be honest I couldn't concentrate and I think taking it easy may help too.
I do hope it all settles down.
xx