if nexplanon hurts your arm is it still working?

Haley
I got it a little over a month ago now, and got my period last month so that was fine but occasionally my arm will hurt either near the implant or somewhere else on my arm... and I recently had sex and the condom broke before he came... but he pulled out when he felt it break and he came outside of me but some could have gotten into me... so I'm scared because it's like my arm isn't swollen or anything.. and I can feel the implant but it hurts a little at times and a little if I touch it towards where the hole is where it was put in. But do you guys think I will be ok? I am a nervous wreck..