Extra protection before implant removal?

I had my nexplanon implant removed yesterday because I wasn’t happy with how it effected me so today I was reading the broacher they gave me on different birth controls and it says that 5 days before removal of the implant you should use condoms or restrain from sex?! Well my doctor never told me this! and I had sex the day before I had it removed now I’m a little worried does this mean there’s a chance I could fall pregnant? My son is only 7 months old 😬