Body has symptoms of pregnancy, but im not pregnant?

Me and my boyfriend have been been active in imitating sex, but we always wear pants, and everytime he ejaculates, i move aside. but recently ive been getting symptoms of being pregnant, i looked online to see if i was, and it could be either that im scared of being pregnant so my body has been showing signs of pregnancy, but i didnt think about being pregnant up until today and the symptoms have been coming for about 2 weeks. Ive never actually had full intercourse, but weve been close to it... im going to take a test, but i am also afraid that the test would come out negative, and there could be a possibility im pregnant? help! what should i do?