Having signs of pregnancy, but ive never had intercourse, am i being paranoid?

Ive been having signs of pregnancy, light cramps, vivid dreams, tender breasts (very sore), and white discharge. Ive never had intercourse with my boyfriend but weve done other things. I gave my boyfriend a bj and cleaned him off with a towel (dont think he ever touched it) Then he put his finger in me for first time and got 2 inches in. We did this about 3-4 days after my period ended and ever since then ive been experiencing these symptoms and freaking out because i think im pregnant. Also me and him dry humped with our underwears on but he never came, but could pre cum have gotten on my underwear and possibly get me pregnant? Im not on a pill, and ive never had intervourse or have been fingered before since the incidient. =( i really hope im not and my period shouldnt come till aug 14-23, my last one was july 15-20