I fostered a 12 year old girl who had suspected FASD, whilst with me she finally got a diagnosis of "partial" FASD. The partial bit was because the birth mother would not disclose her drinking during pregnancy, despite there being clear evidence that she had.
This child had 4/5 of the facial indicators and all of the behavioural indicators. She was born in prison which meant that the drinking must have been in early pregnancy which is the crucial point for early brain development and in particular the development of self regulation and executive regulation. Her brain had developed normally in the later stages but those early months had damaged her brain and so she could not sleep, could not organise herself and was prone to meltdowns that were terrifying to observe and try to help her with.
I did a lot of research and found a guy in Oregan USA, Nate Sheets, who seems to have done more to explain and help children and carers of FASD sufferers than anyone I could find.
Before this I would have said "what harm can a drink do" now I know that depending on what stage of the pregnancy and what particular cell development is happening at that particular time is crucial to how much damage alcohol can do to the developing foetus.
It's more dangerous than heroin during pregnancy.
You drink if you want to, but if you find adhd or other behaviour problems emerging later, look back and ask yourself, was that wine worth it?
I suspect that this will cause me to be flamed on here, but after what I have seen and read about the toxicity of booze to a developing baby, my advice now would be, don't risk it.
www.ncbi.nlm.nih.gov/pmc/articles/PMC1472723/