Hi, I Missed Taking The Last 2 Pills In My

Hi, I missed taking the last 2 pills in my microgynon pack last Sunday and Monday (12th and 13th of July) as my bag (which had the pills in it) was stolen while on holiday. Started bleeding on the Tuesday (the 13th of July) as expected. Am now back home with a full pack of pills. Should I just start the new pack and use an extra form as contraception for the next 7 days just to ensure no pregnancy if having sex in the next week? Thanks.