Am i pregnant on the implant?

Iv been on the implant for 2 and a half years and i normally bleed quite a lot but i havent bleed for two months so i did a pregnancy test and it come up with a very very faint line iv just done a nother test and it come up with a faint line but it is slightly darker i have also had a white mucusy discarge witch i never normaly have do you think my implant could of ran out early please help!