If you want to get her pregnant, there's no time like the growing season. In a study, women who underwent in vitro fertilisation during the spring and summer months were twice as likely to fall pregnant as the autumn-and-winter group. The researchers believe that women in general may be more fertile in the summer because daylight suppresses production of melatonin, a hormone that can interfere with ovulation. Don't want a baby? You're a big boy now. March straight into that pharmacy and buy yourself a bumper pack of latex.
