NEXPLANON HELP PLEASE

Emelia

Hello. I recently received the Nexplanon on Wednesday July 12. And I know you are supposed to use protection if you have sex for a week until the Nexplanon kicks in. (If you get it on a regular day NOT on your period. ) I received it on a regular day.... I had unprotected sex on Friday July 14th..... should I take a plan B or a emergency contraceptive??? 🤦🏽‍♀️