hi miss sinclair;
welcome to HealthcareMagic Forum.
The problems you are having with the hormonal
pills or Depo is because your body is not accepting them.All hormonal preparations cause mood swings;depression
& hence loss of libido is your case.The coils available are COPPER-T which can give rise to heavy & painful periods;the second is Mirena
;it is again a hormonal coil & will cause all the problems like that of hormonal pills.So you can either ask your partner to use condom;or if you require some other option better consult a Gynaec she will guide you better.