i’m 15 n i got the nexplanon in december n i get a whole lot of brown discharge and my mom tells

me it’s normal but i hate it bc it has a weird smell to it... i barely get my period which is good, but i googled and the latest your supposed to have spotting is 6 months after insertion... it’s been 8 months! i feel like something’s wrong but my mom is telling me i have brown discharge bc im supposed to get my period but the nexplanon is stopping it... but like someone please helpppp!!!