Contraceptive

A contraceptive was a device or drug used to prevent pregnancy.

In 2268, Captain James T. Kirk offered the Gideons Federation-made contraceptives. 

In 2375, Rebecca Sisko was conceived after Captain Benjamin Sisko failed to get his monthly contraceptive shot due to the confusion of the Dominion War. 

Kanril Eleya favored a contraceptive implant, and was grateful she had had it refilled before she went home with Cadet Jerrod Dalton from Club Berliner and slept with him.