You're restarting your pill after a break of more than 7 days, correct? Take Plan B (levonogestrel) if you can instead of Ella One because Ella one impacts the effectiveness of your pill and vice versa so you will have to stop taking the pill for 5 days and restart again. You should definitely take emergency contraception even if you're not sure it will be effective, it at least gives you a chance of preventing pregnancy.