Is It Okay To Get Implanon After Unprotected Sex?

Hi. I had my period on february 23rd and had unprotected sex on the 3rd of march and I took the next choice pill on the 4th of march, but then I had sex again on the 5th and he accidentally ejaculated inside. On the 9th I have an appointment to get implanon. Should I still go to get implanon even though I had unprotected sex? Or should I take another pill?