LATE BY 5-6 DAYS, help?

Hey ladies 👋🏾! So I'm a little concerned about my current predicament. Last Month which was October 5th to be exact, I had an "oopsie" with my ex and took a "Take Action" Emergency Contraceptive on the 7th. That following week, had unprotected sex again with him on the 12th (I got caught up, don't judge me!) My menstrual came on Friday, the 21st and boy it was HEAVY. On top of that, menstruating for me is usually 5-6 days duration and it happened to be 9 days long for that cycle with cramps on top of cramps 😩. Now I was expecting to see blood again on Nov. 18th and it never showed and I'm now according to my calendar, "5 Days Late" 😳🤐.....I'm not sure if I should worry or just chill and wait and see. SB: I'm 24 this December... Advice 🤔?