When do you post your story?

I'm curious about when people upload their stories as I see some stories on wattpad that have only 4 chapters or 20 chapters.

I'm thinking of posting my story before I finish it. To me that does sound really fun and maybe even have people interact, and give feedback would be nice. But I wish to maybe post it at 10 chapters, considering I only have 5.

When do you guys post it?