With a 28 day cycle can i get pregnant 8 days after my period?

Yes: If you are having unprotected intercourse and are ovulating you can always get pregnant. You can ovulate early and sperm do hang around. While the chance is highest at mid-cycle it is not zero at any point. If you don't want to be a mother , use a reliable method of contraception and condoms to decrease the risk of STDs.

Yes.: It is the begining of your fertile period. Unprotected sex at this time can cause a pregnancy.