Cazz,

no, if you do end up being pg to a singleton, you would normally not get any spotting or loss from the other embryo. I had two embryos transferred and am expecting a singleton, and did not spot/bleed. This is not to say that should you spot/bleed that this isn't a normal pg, but as such, there is no seperate 'loss' of your other embryo.

HTH

love
sushee