I would start where it pipped and slowly expose the nose and beak and go from there. Did you look at that link? I had to assist a malpositioned chick with my last hatch, and I didn't have anything either, I just applied pressure with a tissue for a minute and it's 3 days old now.
If it's trying to get out chances are the veins are already receded. But I understand the dilemma! Can always watch it for a little while and see if anything changes.