firstly lexy theres a pregnancy section in the family topic, you may want to post in there as well so that more people see it
As for the spotting, there are many women out there who have experienced slight spotting and gone on to have perfectly healthy babies so please try not to panic. I know of a mother who has bled throughout the 40 weeks and there was no actual problem. It doesnt make it any less worrying though, i realise that
The fact that the spotting changed to brown means that whatever was causing it has stopped. also the lack of any pains is a good sign too obviously.
spotting can be caused by a few things, and is not just a sign of loss. It can be cervical erosion which is fairly common. Did you have intercourse before? its been know t cause slight spotting.
also if you are suffering at all from constipation and piles then you can bleed from that and with such small amounts be unsure as to its origin.
You have had a scan already at 12 weeks and all was well and the odds once past 12 weeks are much better so please just try and relax until your scan later.
Im pleased to see that theyve booked you in so quickly.
Good luck