Crystal Owen, whose 17-year-old son Harvey died in a crash last November, is calling for the government to introduce a graduated driver licensing scheme for under-25s.
The presenter, 48, normally fronts GMB with co-host Susanna Reid but has been co-hosting This Morning alongside Holly Willoughby in a big change-up this week.
Joined by co-host Ben Shephard and journalist Matthew Wright, the trio discussed why 26 September is the most popular day for babies to be born in the UK.