Well you have to factor in that she had a boy and that typically pregnant women carry boys lower whereas girls are much higher. So it would make for her to go a little more unnoticed since he would be hanging lower and possibly easier to disguise. I’m in utter shock though. Not only with her constant touring but slim figure...especially with a lot of her tour costumes were very form fitting. I guess some women in some cases don’t show until the end of the pregnancy which could be her case. Hmmm, it does make sense that she keeps wearing the black strapless sequin dress that flares from under the bust line
It also makes sense in which avex hasn’t been putting too much effrontery into her lately and focusing more on other artists.