<prompt> The highest incidence of ectopic pregnancy amongst contraceptive users is observed with:Combined contraceptive pillsCopper T intrauterine contraceptive deviceProgestase intrauterine deviceLevonorgestrel intrauterine system  <response>: - There is a slight increase in propoion of ectopic pregnancy post-failure of IUCD. The failure is highest with progesterone IUD. Progestase intrauterine device: - Rate of progesteron release 65 mcgday - Total progesteron content 38mg - Shelf life 1 to yrs - MC side effect is bleeding - 2nd MC side effect - pain 