pregnant ?

i had protected sex a week ago and i’ve been getting symptoms of pregnancy every day since i put the nuva ring in that day so i still uses a condom. i’ve been nauseous, had headaches, some cramps, had body aches, and i’ve just felt sick in general. i know i could be over reacting but i’m 16 and i’m paranoid. can anyone tell me how to get better or if they think i could be pregnant?