Claire,
Gosh i am so sorry you must endure this. I know only to well how you feel. Its one of the worst or should i say the worst emotional pain i have ever felt so you are not alone and most of us feel this way. All i can say is you did nothing wrong hun, i hate the saying but when this happens "its just not fair" - i know you want to scream, through things, just cry but know with time the pain will dull and you will be able to live with whatever you are feeling right now. I wish you luck with your decision making and all I will add is go with your heart - for me i never want to look back and say should of could of but why didn't I? I don't want to regret any decision as far as TTC - take care Claire. I really hope your dream comes true.