Rather than it being a special moment, she threw her virginity away. And she bitterly regrets it. She even argues the case in Friday's Channel 4 show, Let's Talk Sex, hoping it will spark a national debate.
Davina, who is married to outward-bound instructor Matthew Robertson, wants PSHE in place to help their children - Holly, five, Tilly, three, and seven-month-old Chester - deal with any pressure to lose their virginity when they are adolescents.
It aims to promote kindness, respect, responsibility and morality. It is only as pupils near secondary school age that sex education is introduced. Government guidelines are very age specific about the subject and that is absolutely right. I would not want my five-year-old daughter being taught about sex.
When I see a headline saying, 'Davina: Let's Teach Four-year-olds About Sex', it makes my blood boil. I thought that not telling them about sex would stop them trying it. Worryingly, sexually transmitted infections STIs are also increasing. There is nothing stopping parents from saying their faith expects their kids to wait till they are married.
And while they loved their babies dearly, not one of them said she was happy that she'd become a mum so young. Davina, who lives with her family in Woldingham, Surrey, believes that parents must open up at home, too. So I want to be as open with my own children as I can.
MY own experiences with drugs means I feel equipped to talk to them about it when they are old enough to understand. But I can't do anything except be there for them if they need me. She didn't ask any more - like how it had been planted or where the seed had come from. Most children are happy with an answer like that and won't delve any deeper.
I have learned so much and I'm learning all the time because I have opened my eyes to the issues. I just hope I can get people talking about it.