hi im 34 years old . i had unprotected sex on the 18th of may . my boyfriend had come four times in side me . i normaly get my periods on the same date every month , after that night of sex i got my periods early just 2 weeks after it . that mean,t i had my period twice in the one month . my breast is very tender and sore . i dont feel un well some days like geting sick and very tierd , does this mean i could be pregnant my head is all over the place over this . please some one help could i be pregnant ??????