I’ve been on the implant for the past two years

Patient: I’ve been on the implant for the past two years. I generally have frequent periods with the space between sometimes extending to between 6-8 weeks. However it has now been almost 12 weeks since my last period. I don’t think I have had any signs of being pregnant other than maybe putting on a bit of weight around my middle. Is it worth taking a pregnancy test or should I wait it out a little longer?

Doctor: