Rachel Riley has given fans an exciting new update! The Countdown host – who welcomed her first child with her husband Pasha Kovalev on 15 December – has revealed how their little girl is now trying to stand on her two feet and has started to grow some teeth.WATCH: Good Morning Britain winner sends touching message to Kate GarrawayReplying to a Twitter follower, who asked how her family was doing, proud mum Rachel replied: "One of us is trying to run about and popping out some more teeth! The