Just who should take responsibility for birth control is a subject that divides many couples.
There are only two forms of male contraception — condoms and vasectomies, and they have disadvantages.
Though condoms have a 98 per cent success rate with perfect use, in reality and with human error, they prevent pregnancy only in 85 per cent of cases — an unacceptable risk for many couples.
Vasectomies are designed to be a permanent form of contraception (though a reversal is possible) and involve otherwise healthy men going under the knife.
Female contraceptives, on the other hand, such as the Pill or implants are effective and reversible, though they can cause nasty side-effects such as weight gain, depression and blood clots.
So why are there not more options for men?