So nauseous...

My period was 14 days late and than it was a two day period, took a test came negative but my boobs still hurt and the restaurant I work with makes me so nauseous, maybe because I haven't eaten yet. But my boyfriend and I have known each other since 6th grade, he loves kids... But says I don't need one and I don't need a woman ruining my life... Now I'm scared and if I am, do I just leave him... So confused, emotional too :( 
Do I tell him or just leave him say good bye? If I am? We're both 22 years old...