Period or no?

So I had/ what I think I had as a period for a year. Thanksgiving 2017 to thanksgiving 2018. Since thanksgiving 2018 I haven’t had a period. I’m a virgin. I’m also 14. I go have a physical in the summer. I can’t go to a doctor right now. I wondering if I should wait a little to see if it comes before I tell my mom? I’m not on birth control but like again I don’t have sex. Does this normal? It worries me for in the future if I can have kids? And when I did get my period it would be blood clots? Clumpy, and gooey sorry the tmi. But is this normal? And should I tell my doctor now or in the summer.