That's wonderful!
I know that first time watching them pip it seemed like it took a long while to see the first hatch out. If you intend as some point to intervene in an egg that's hatching please watch a few youtube videos first. I like this video here: (its not the best video ever but still)
it shows very up close pictures, the person gives a decent pretty accurate explanation, and the chick being helped was because it was shrink wrapped (not a malformed chick that never would have hatched on its own). There are several things to look out for that you need to know about first or you will do more harm than good. This was my first year of hatching eggs and it has been a learning experience with each batch. I have not had any issues with shrink wrapped chicks (keep my humidity at 75-85 for hatching). Of the ones I have 'helped' only a couple actually were healthy and survived and if I left them alone most likely would have hatched on their own. The prudent wisdom of let nature take its course really is the best course when incubating chicks.
Though I find it hard, to take my own advice.