I Am Currently Taking 'Cerazette', The Progesterone Only Pill. This

I am currently taking 'Cerazette', the progesterone only pill. This pill allows for 12 hours if you forget to take it. However, I recently misplaced the pill and had to get another peescription which meant that I am now 13 hours and a half late taking the pill. I have two questions: do I need to take additional protective measures as it is 13 hours over? And on my new packet, do I start on the first row again seeing as I was on the last row of my previous pack before I misplaced it.
Thank you very much!