Safe to have sex? Please help 😊

Mo

I missed two pills in the first week of my pack and couldn't double up because I had a severe tummy bug. My second week has been a full week of taken pills and I started with week 3 tonight.

When will it be safe to have unprotected sex again? I've read that the general rule is 7 days, is this correct or should we use extra protection for the whole month?