Thank you for your medical query at DoctorSpring.com
I understand your concern.
I can assure you there is no chance of pregnancy from the exposure. For pregnancy to occur, intercourse has to take place, and semen needs to be deposited inside the female vagina. So, please do not worry, I can understand you are really stressed, stress will only delay your period. Your symptoms are not suggestive of pregnancy at all.
Please feel free to discuss further,