Could i be pregnant?

Patient: Okay so my boyfriend and i were messing around and he fingered me and i gave him a hand job. he helped me make himself come, and a little got on my hand and some on his. i dont remember if i touched anywhere near my private area, but i think im late, and or missed my period, and im really scared. im stressing out and everything. could i possibly be pregnant? please help me? What are some symptoms? how early can you take a test and it be accurate?