The birth control device not used by women is:

Contraceptive method,having least side effect is $:-$

$A$ sterilisation technique in females which blocks gamete transport and thereby prevents conception is

Oral contraceptives prevent:

$LNG-20$ is . . . . . . .

Use of which of the following contraceptive device has increased in recent years due to its additional benefit of protecting the user from contracting $STDs$ and $AIDS$?