Hi.. Morning after pill are any way effective in preventing pregnancy due to any sexual intercourse 72 hours earlier (though failure rate is known).. Hence technically speaking the birth control pill is not going to do any more than what the morning after pill will... So I think you may as well not take your normal contraceptive pill.. Avoid unprotected sex for a this month and then start of the usual contraceptive pill fresh from the next month onwards.. Or alternatively you may follow what is followed when a pill is missed from the 3day or 4th day onwards.. Inorder to prevent menstrual irregularities, I would feel the former would be better than the later... Discuss with your doctors..