Very very sorry. It can be a very cruel business. Unless you've been through this thing you could never understand. Going to SA and still no luck is a real stab.
The fact you went to SA says something about your determination. I am sure , like the other like minded determined girls on this forum, you'll be back. I'm sure you'll get your BFP.
We can all take some hope from some of the other girls who have been lucky second time. Also January - everything went wrong for her trip but she still ended up with a BFP.
I agree with Em - take some time, spoil yourself a bit and regroup.