If you want to lift up an economy in Africa, you basically start with the women.

Sometimes it's the people you can't help who inspire you the most.

I'm happy we have three healthy children and we'll stay with three healthy children.

Now we just really need to do the work, which we're doing, to get contraceptives out to women worldwide.

If you don't invest in the woman, empower her, give her the things she needs to lift her family up, you're just not going to make the progress that you want to make. But if you put her at the centre, you can change a lot for that family, and it has ripple effects through the economy.

I felt suicidal. I couldn't stop crying. I remember thinking, wouldn't it be great if the car crashed and I died?

Now, as smartphones are coming up, there are all kinds of apps that will start to be developed that will help women.