I also think this is why the FDA waited a month before scheduling the EUA meeting as if they will only have a few million by end of month, that means they had about nothing in mid-January. So to approve the J&J vaccine earlier was not going to do much as they didn't have any vaccines to distribute.
Pfizer CEO just announced they would manufacture 200 million doses by end of May, way ahead of schedule.
That's not new news, unfortunately.