Help pregnancy symptoms

Kaitlynn
Hello I know everyone asks these questions and you're probably bored with reading them but I'm 19 and I've never done this before and I'm exhausted, having slight cramps and little lighting bolt feeling in vagina area every so often hard nipples nauseous and emotional and I can't stand smells of certain things I loved before Ughhh idk what's going on I still have 12 days till my period comes. Is there a way I could feel pregnant so early on or when should I take a test to be sure. Is it too early to test now?