It's been almost exactly a year since I had nexplanon inserted. We always use a condom but I know that pre cum can be a problem. My last period started on December 16, 2014 (or within a day or two). On January 22 of 2015, I took a test with a negative result. Now I'm cramping with a tiny bit of spotting. I googled and it says this is an early sign of pregnancy. Now I'm panicking because I'm 19 and don't want to be pregnant. Help.