Thamks for the feedback.
I agree, re ISO, although this was shot as soon as I had taken my camera out of the bag, - no time to change settings. I have my camera set on ISO 200 as default.
It's probably not so noticeable unless you can zoom in to the image, but if you have a look at the fence and at my wife's chin, you can see that they are also blurred.
At such a slow shutter speed, movement of the subject is always going to be an issue and with a baby, that's even more likely to be so, ordinarily I would have acccepted the blurring as movement. The fence was what got me going though. In deference to your opinion Niko, I must concede that the blur is probably a combination of both.
Which brings me back to the question still standing, is there any way to repair such a blur in post?