Freaking Outtttttt

Teri
Okay so, my period is late by 10 days. I've had all my period symptoms the cramps, the tender boobs, the discharge all of that but no period yet. I've taken 2 tests & both came out negative. I still have cramps so idk if I should wait or go to the doctor or go ahead & buy another test. Has this happened to anybody before? I'm freaking out cause I'm not ready for a child yet