Judebaby,
You are a brave one and yes, please do a BT tomorrow no matter what. You still have time for another shot this year. Give yourself time to think about it.
Liz,
Your hubby is great to be so supportive and I get you. We must find at least one thing we enjoy at work or else, zero motivation. If you are in a line where you can come back after a break, definitely can take a few months off and return later..
Babydream,
Guideline for spotting from my trusted gynae
If brown or very light pink and no cramping, its old blood and not so worrying but so go see gynae the next day.
If brown or very light pink and got cramping, go to emergency.
If red and even if no cramping, go emergency.
So no matter what, do try to track down a gynae who you can see tomorrow. If kk does not want to see you. Any respectable gynae with free time slot will.