I had my Nexplanon implanted September 9th and before my boyfriend was deported September 22nd, we had unprotected sex the 21st, 12 days after it was inserted. I was also not on my period when I had it inserted. I had very light spotting a few weeks later and have yet to get my period. I have all the pregnancy symptoms and I'm terrified, even though I'm 18 myself. If anyone can help, I would appreciate it.