Too early to tell my mom?

I'm pregnant. But it's super early. I haven't even missed my period yet. It would be due in a couple of days. But I'm pregnant. I want to tell my mom. SO BAD. I want to surprise her. She thought I'd never have a baby. Hell, I thought so, too. I just want to tell my mom so bad! But what if I do and then next week all of a sudden... you know. Advice? Can I tell her and have the excited part, but then tell her how early it is and that we need to be hopeful..? I don't want to give her false hope but I also have never been pregnant before and just need my mom! Right??