side note - use some sort of drainage amengment in future. Even coco needs 33% perlite. Higher water capacity mediums like typical soil or sphagnum peat moss need 50%. (perlite, pumice, vermiculite, etc.. lots of options if you don't like perlite)
Also, germinating in a large pot is a bad idea. Tiny plant in a big pot is trouble waiting to happen, even if you avoid it more times than not. up-potting is not stressful for a plant. It's a total myth not to "trasnplant" autoflowers. Up-potting is not stressful and only a retard would shock a plant doing it.