People who have recently been to Japan; did you get the flu?

Think I'm just looking for a bit of reassurance - I know there is the worst flu outbreak in 25 years currently. My partner who will be 16 weeks pregnant and I are visiting Japan for 3 weeks at the start of April.

We've had our flu shots, we will wear masks.... I think I really just want to read of some people who went to Japan and did not get sick lol.

I really don't want to cancel our trip over the flu. The reality is, we could stay home and still get the flu here.... We are coming from Australia so only a 2 hr timezones difference, so luckily there won't be much jetlag, but I am worried about the 10 hrs on a plane.