Expanding on the last point brought up by dlish, I'll ask for those willing to reply:
Ideally, if you were presented with the opportunity by some almost-all-powerful genie, of choosing between two sides of the exact same attractive woman, but the choice #2 being she is seven months pregnant, while #1 is her static, normal build, which would you choose more often than not? Would you seek to date her if this was a possibility, or do you just "admire" her overall new-and-improved child-rearing form, and would stalk her for the majority of the day, but not want anthing more than that? If there were an option to have your woman be perpetually and forever pregnant, or at the very least, have her body appear the same way it does when she is expectant, does that pique an interest?
I don't really care how you feel about all the hypotheticals I posed above, but perhaps you can glean something from yourself in the process of thinking of 'what if' this could be a reality, and see if you prefer pregrant vs. non-pregnant woman more than you initially thought you did.
I also have something nice to offer apart from my ponderances:
Stars Who’ve Played Sexy Cover Girl While Pregnant | The Frisky