Is it normal to miss your period?!

More or less. They often are just not completely regular without some aid (like birth control). Don't worry about it very much. It's often caused by stress that throws your body's rhythm off temporarily. But unless is just stops altogether for a really long time, or some other strange symptom like that you don't need to see a doctor. Unless of course you really feel like something is wrong, in the end you know your body best so if this doesn't seem normal to you then don't hesitate to see a doctor.

But to answer your question, that's relatively normal every now and again.

Im trying to figure that out too! I missed mine for over 1 year and Im extermely worried! and im afraid to tell my mom!