smashthechampagnebottle

Hi there! I just wrote a fic for a ficathon and I had meant to submit that fic for this challenge too as it fits. But I didn't realize the fics for this would be kept hidden until the challenge is over, so I couldn't tag the challenge on AO3 as I would miss the ficathon closing date. So I was wondering: is it ok if I add this fic to the collection and register it to the challenge closer to the date when the fics are revealed? Provided the ship is still unused at that time, obviously.