Am I pregnant? NO NEGATIVE COMMENTS!!

Skylar
Well, lately I have been having weird symptoms. I've been having, 
•Nasuea 
•Sore Breasts
•Dizziness 
•I have weird feelings sometimes
•Mood swings
I'm suppose to get my period in 4 days so I've been waiting to see if I get my period . But my step mom said I could still get a period while pregnant so I don't know what to do. Should I go to the doctors or what? Am I pregnant ?