Confused

Hi, I need some help.

I might be overrating but the last few days I've been very tired and my moods are all over the place.

I've been feeling very nauseous and I have really bad heart burn.

I missed my period and it's over a week late.

But I've also read that an early pregnancy symptom is peeing a lot.

Which I'm not peeing that much more than I usually would.

Am I overreacting or could it possible be early pregnancy symptoms?