What's wrong with people?!

My son and I were at the library program this morning and one of the moms asked if I was pregnant. After I confirmed she said she was nervous to ask because she wasn't sure. I replied with I know what you mean, could be baby, could be fat And she followed up with "you don't look fat, you just look like you have to go to the bathroom" Really?! This is what I was wearing-I know each person is different but does this really look like I just need to poop?