Nexplanon Implant

I’ve had the Nexplanon for 7 months now… currently I’ve been bleeding for 14 days straight. I feel like my period has become so much longer than it used to, I’m emotional, I’m tired all the time and I’ve got almost like a brain fog!! Has anyone else had this problem? I tried to give my body 6 months to adjust to it, but I’m about at wits end! What’s the point in having birth control if my period is so heavy most of the time and happening more often that I can’t even have sex. This is my cycle for the last 2 months, I’ve been bleeding more days than not. Did anyone else have any problems with their Nexplanon?