I'd naively assumed that Muslims would follow the same guidelines as Catholics - women who are pregnant or nursing are exempt from fasting, automatically. I never thought about the issue. However, this article seems to be suggesting that women are not following that advice.
Fasting, for Catholics, means 2 smaller meals and 1 normal-sized meal. It's only for 1 day a week, and then only during Lent.
Ramadan, on the other hand, is a month-long fast. Muslims are not to eat during the day, at all. That's a lot of deprivation for pregnant or nursing moms.
Well, since it's optional for moms, why make a fuss? Because of this:
Update: I found the following article on Voxant. It seems that even in the relatively urban and relaxed Dubai, rules are rules - EVEN for NON-MUSLIMS.