Hi I’m currently using the arm implant as birth control & I’m worried I might be pregnant, my period is late but that’s not surprising they’re very irregular. I took a pregnancy test, the first one came out positive, the next two negative. My breasts are swollen & hurt & my gums have swelled over the back of my teeth & also hurt. I’ve also had some cramping is this pms? Or I’d there any chance I could be pregnant even with two negative tests?