Good explanation ladies: This only thing I might add, if it isn't too late, is that the look of that camera is deceiving. It is quite large and long. Don't worry, it doesn't have to go in very far. I remember looking at it and thinking, are you crazy!? But it is just fine. It certainly doesn't hurt. Just don't panic when you see it. It doesn't go in all the way! Ha.
I have learned that I can keep going long after I can't.