Going to Canada isn't going to stop her getting papped. Particularly when you realise she's currently in Canada and has the paps following her walking. It's only going to get worse for them, because the royals had an agreement with the media about their privacy, which is why there was no photographs of them on their Canada break. The press had them and didn't publish,
It's about to get a shit load worse as they've lost that protection, so if they've gone to Canada to escape it they've made a very bad decision,
And I'd agree, yes it looks uncomfortable how she is carrying her child but who cares, as long as they are both safe, comfortable and happy.
I can't imagine how hard it must be to be walking with dogs, a baby in a sling, body guards and the press following you.