Nexplanon effectiveness

I just reached the 3 year mark last month and urgently need to get it replaced. I’m just absolutely terrified about the fact that they have to use a scalpel to remove it! My boyfriend and I had not been using condoms and just using the pull out method, but yesterday the first condom we used broke! I am freaking out because I’m at peak ovulation and don’t know if my nexplanon is even the slightest bit effective. Any insight or advice would be great!