@Kimberly788 Yes, you have to publish first. I don't understand why this is, it seems really stupid and counterproductive to not allow hosts to first publish with complete info. It wasn't like this when I first signed up in 2016- I know I had all those fields available and carefully and diligently filled them out.
But honestly, you do not want to publish yet if you don't feel your photos are good enough, using them as "placeholders" (but plenty of hosts' own photos are fine- sometimes pro photos are not preferable- they often use wide angle lenses which elongate and distort the spaces).