will i get pregnant 2 days after my period ?

i had sex with my boyfriend 2 days after my period . he did cum inside me. we had sex again 5 days after my period . again , he cum inside. now my breast are getting bigger and its very swollen and each time i ate something , i'll vomit it out and then lost my appetite for the rest of the day. i am suffering from backaches too and i get tired very easily. am i pregnant ?