Wren weighed 4.4 kg this morning, exactly 3 days after his last weight-check. Granted there may be some inconsistency since this was a different scale but it seems good news. Also, he was very hungry at the time and nursed a lot after the weight-check so that would have made an immediate difference.
This means we can keep doing the BF on demand thing instead of trying to feed calorie-added breastmilk by ng tube or bottle.
Our pediatrician wants to see us again tomorrow (rather than next week) so I will have the full story then.