Pregnant on Nexplanon Implant ???

Elena
I've had the Nexplanon implant for almost 3 years (June 10th marks 3 years). The first year I had irregular periods then the second year I had no periods and this year I have been having a period every 50 days. It's been 70 days since my last period and I've been having random cramps. Do you think it is possible I am pregnant?