Implant removal & pregnancy! HELP!

Just wanting some opinions on this. I had my nexplanon implant removed on the morning of July 19th, however, me and my husband had unprotected sex late the night before. When I got the implant removed my doctor said fertility is super high right after the implant is removed. It’s been over 4 weeks and I still haven’t had a period. Is it possible that I got pregnant from having sex the night before having my implant removed?