When now 16-year-old Helen got her first period, it was her dad who helped her with it as he was the parent who happened to be at home.
Chatting about periods with young people can be awkward, even more so if you don't experience them yourself, but Helen says her dad had always spoken openly about what to expect which made that first time much easier.
Dads "can't tell you how it actually feels or how it can affect your life sometimes, but they can still provide advice and talk about it," she says.
Yet talking about periods can still feel like uncomfortable for many and even today, it's often left to mothers to handle.
Helen's father John Adams is one of a growing number of dads who are challenging the unfounded stigma.
