I think im pregnant!!! Help!!!! Please!! ?

Earlier in the month i had unprotected sex... He pulled out and did not *** in me.. He possibly may have pre came in me... But i dont know... I was supposedto get my period on the 31st of may( 30 days between cycles) and its the 2nd today... Still havent got it.. Im pretty worried now...ive recently looked up preg symptoms and i do have many... Like stomach pain, head ache ect.. Im 14, 15 on the 11 th of june... I was thinking a pregnancy test... First response? But does anyone know how much it would be at a shoppers drug mart? Pharma plus?? I really need help... If i am i dontnknow what to do... Abortion? Have it??? I cant tell my parents... They still think im a virgin! Any way to have a secret abortion in london ontario??? Please help? My boyfriend is stickin it through with me but we desperatly need some advice here... Please help! Thankyou so so much.