Is nexplanon mri safe?

Does anyone know if nexplanon is mri safe? I had an open mri last month then had unprotected sex with my friends with benefit. I know it’s not 100% safe but what I’m wondering is was there any chance that during my mri that something happened to my nexplanon. It was a long appointment. It probably was 40-45 mins. I’ve just recently just been feeling off lately and don’t know if it’s just my mind playing tricks. I had my period for like two weeks which I was expecting because it was my first month with it but I had a week break then I started spotting which I thought I was starting my period but it stopped after a couple days