3 weeks ago I got into it with a guy in his car and he inserted a bit of him in me without protection but didn't take my virginity. Now yesterday I felt sick. Symptoms:

-Headache/dizziness

-Stomach pain

-Nauseous

-metallic taste in my mouth.

 Today I feel fine aside from the headache and metallic taste. Is there a possibility I may be pregnant? I'm 16 and am panicking to no end right now. Help please cause I don't know if I am reading to much into these symptoms and may be getting sick instead.