I don't know if it was the acupuncture or the estrogen suppositories or any of the other suggestions that y'all gave me, but something worked - my lining was 10 mm this morning! That's up from 6.5 mm last week, so I'm thrilled and relieved, to say the least..
Donor looks good too - her retrieval will be either Friday or Saturday morning. We'll know for sure on Wednesday.
I'm scared to get my hopes up, but I'm also starting to get very excited!