Nose piercing

I got my nose pierced two days ago and they used a (bone) stud. It's been coming half way out for about a day and I've just been poking it back in. However today I was cleaning it and when I was cleaning the inside I noticed that I couldn't really see the little ball on the inside. I can feel it however. I was scared for awhile thinking maybe it's not all the way through since I can't really see it? Or that since it's small it just sits on the inside and because of how small it is it's just hard to see? I'm all new to this so anything would be helpful!