Hello,
If you have not missed any pills other than taking 2 on one day your risk would be very low. To be safe however, take a home pregnancy test if that is negative than you can start you new pack just as you normally would.
If you don't have a period the next month then I would see your provider.
Nurse Practiti&oner
I am a board certified Nurse Practitioner and have practiced for 13 years.