Feeling hopeless

I have that bad feeling again.  I'm bloated and feel exactly as I do right before my period starts.  I've also been getting my textbook headaches indicating it's on the horizon.  I'm trying so hard to be positive but realize that I'm just not wired that way.  I think I'm so used to bad news that I inherently expect it and I'm not able to change.  It just pisses me off because we had 4 amazing embryos.  The embryologist even commented on them saying they looked the best they could be.  So the problem lies with implantation.  And unfortunately, nothing is really known about why or why not they implant.  Most of the time it's due to a cyst or fibroid, which I already had and got rid of it.  Other than that, they really can't say.  I don't know that it's a NO yet, but I'm preparing for it.  It's the worst feeling in the world.  Pray for us, negative or positive.  It's a treacherous road we're traveling!