Implant for about 3 weeks. But Im still somewhat nervous/careful

Dainma
So, I've been on the implant for about 3 weeks, me and my SO just recently had...sex, it was my first time, he did not cum inside of me. But I want to, but I'm not fully sure if I should. I'm just a really careful person, pregnancy for me(even tho the doctor has said it's a bit highly unlikely) at the moment isn't something I'm looking forward to with my mental health and more. But yea...I wouldn't mind another opinion.