That is true. So I guess, in sake of fairness, we can't really whip the Sue for not noticing (If she indeed has an irregular period and her body type hides her pregnancy well). I mean my mother didn't look pregnant until 3 months and she wasn't hiding it when she was pregnant with me.

Still I know this wasn't taken into consideration. This was just a badly done reveal. But, as I said, fair is fair.