In denial...

I’m 19... I’m so scared. It doesn’t feel real, feels like I’m in a dream. There’s just no way this is real. I don’t know what to do now, so scared to tell the guy I’ve been seeing so scared to tell my parents. Don’t know how I’m gonna raise it or afford it. I haven’t told anybody yet and I’ve known since this morning, i just don’t know what to do. I took a plan b I don’t know how I could be pregnant. And I’m having cramps and I don’t know if that’s normal? :/