Will I Be Protected If I Miss 4-5 Pills Of Microgynon 30?

Hiya,

Im currently on Mycrogynon 30, i have been taking it for 2 years and had not problems with with. However, after taking about 16/17 pills of my last packet i lost the packet and so didnt finish taking all 21, i took the last pill 4/5 days ago. I had unprotected sex a day ago thinking i would be protected as if it was a break week. Will this be classed as my break week a week early?

Thank you for your help.