@leyshoja, regarding the Clexane:
I only started mine 6 days prior to transfer.
I have no idea why though - I am just placing my trust in the Doctor's hands and hoping that they know what they're doing!
I guess everyone's circumstances are unique - I was not prescribed any luteal phase support despite everyone here suggesting it would be a good idea, and despite me asking (very forcefully) to have it.
When I queried why I wasn't getting any, my Doctor just said "Try not to compare yourself to others. You're not getting luteal phase support because your body does not need it."
It's hard, isn't it, to give up all your control. It's something that I struggle with anyway.....