Should i be worried i missed two periods and now just got mine i havent had "it" yet im still in middle school
Yes, you should be worried. Go to the doctors.
Irregular periods is common at your age and I assume you're not having sex.
No, not at all. When you first start out, they are very irregular and skip around ALOT. It's perfectly normal. It happened to me and both my best friends. You're fine!! :)