Is it too soon to tell?

okay, soo like my original period is on the 1 or 2 of the months, but last month i got it on nov 19, okay, and than i finished nov 25. on nov 28 my boyfriend came in me & the next day i took the plan b. on dec 2 i got my period AGAIN so i think it was the pill. the 4th while on my period he came in me. the 5th also. after lke dec 10 or so hes been ing in me pretty much everyday. i havent missed a period cuz i think ill get the 1 or 2 of jan. but i get cramping, nausea and headaches ALOT! mood swing & tirednedd. can i be prego? i havent missed a period..