3 ms·

I doubt that a contraceptive with 5% effectiveness would make it this far in trials. Even "pulling out" is more effective than 5%.

• kiiski 15y ago
  I think he was talking about HIV.
• rdl 15y ago
  Also, contraceptive success is usually annualized, like with correct condom use, pregnancy happens less than 3 percent per year. I assume there is a standardized level of sexual activity for that, too.