Implant and pregnancy

Tekelia
I have been on the implant now going on three years and in the pass 2 years I've niches to pick up some weight. A few people that I know say that they have gotten pregnant on the implant and others say it had them gain weight. Me and my boyfriend have relations but this time I'm kind is scared on what the outcome maybe this time. Could I possibly be pregnant or is this a mind game that I'm playing on myself? I need advice can someone help please.