Yes, do it for at least 20 minutes.
The search feature still isn't working or I'd share that thread. Sorry about the TMI, but I do remember one other poster shared that orgasms are good for blood flow, too. Just sayin'...
We are transferring one. We're very twin-averse, for a variety of reasons in our situation. We've got 3 frozen, so whether or not this cycle is successful, I'm hoping to have at least one frozen remaining.
Fingers crossed your lining increases by Thursday! Good luck!