Put it on it's side. This happened to me once last year and once this year, both made it, but both needed assistance to get out. Just make sure the pipped spot is clear so the chick can get air.
Ok, I'll do that now. I candled at 3am and no internal pip/external pip. So it must have been in the last 3-4 hours. You'll have to let me know how long to wait before giving any assistance. Thank you!