Once it has piped it will take about at least 12 hours before it zips, right now it is in the resting period and its finishing absorbing its yoke. Just stay calm and relax. Baby chicks can hatch on there own its there instinct. If for some reason it has not hatched for 24 hours after it piped then this might be the time to intervene. Go to the search bar and type in "How to assist an egg hatching" There is a great article for guiding you through the process.
It could be okay, I would put it in the incubator and see what happens.
Hope this helps.
Welcome to BYC and the coop! There's a lot of great peeps here! Feel free to ask lots of questions. But most of all, make yourself at home. I'm so glad you decided to joined the BYC family. I look forward to seeing you around BYC. Wishing you a great hatch!