A drink here and there will not result in FAS. It happens with the mothers drinking every day! This can be prevented, unlike down syndrome. If you're going to get pregnant, then why drink at all?!
Be responsible not a loser.
The implications of enroaching on women's bodily sanctity for the purpose of safeguarding the fetus are vast and troublesome. It is an approach that can result in morally reprehensible scenarios and have intense, unintended consequences for those involved. The idea that we ought to allow the government to seize custody of someone's own physical form on the weak justification that by virtue of this grave theft we *might* be helping out some hypothetical future person is foolish, immoral, and unacceptable.