I got the nexplanon about two months ago. The first month I did not get a period at all and my cycle actually lasted about 50 days. I started my period last week and it has been going on for 8 days now. It hasn’t been super heavy for any of it but it has been constant. Since my cycle has now become irregular does that mean that the implant is working. I can still feel it in my arm. I’m just really paranoid about getting pregnant