Male birth control could one day be a reality, with scientists making huge advances in recent clinical trials.
In one study a contraceptive jab was 96 percent effective, lowering sperm count by switching off the male reproductive system.
But the trial had to shut down early because the drugs caused side effects like muscle pain, acne and depression - similar side effects to what women on the pill can experience.
In a separate development, British scientists have created a new compound that stops sperm from swimming altogether, rendering men sterile for a few days. They're hoping it'll be available as a pill or nasal spray.
So how far away are these male contraceptives?
Fertility Associates scientific director Dr Dean Morbeck joined the show to explain.