If i miss 4 days of birth control in the last 2 days of the first row and first 2 in second row an had sex and get my period can i get pregnant?

Yes you can: If you miss 2 or more daily pills during a cycle you should either abstain from sex or use a back-up method of contraception (like a condom). Each type of pill is different, so check with your doctor to learn more. I would use an emergency contraceptive in your case. If taken within 3 days of unprotected sex, it reduces your chance of getting pregnant by 89%.