Alcohol consumption during pregnancy can have significant negative effects on the developing fetus, including impacting the unborn child's memory. This condition is known as Fetal Alcohol Spectrum Disorders (FASD) [1].

FASD is an umbrella term that describes the range of effects that can occur in a person whose mother drank alcohol during pregnancy [1]. These effects can include physical, mental, behavioral, and/or learning disabilities with possible lifelong implications [1].

One of the key areas affected by prenatal alcohol exposure is memory. Studies have shown that children exposed to alcohol prenatally perform poorly on tasks that require them to remember information over time [2]. This is believed to be due to alcohol's impact on the development of the hippocampus, a brain region critical for memory formation [2].

Moreover, alcohol use during pregnancy can also interfere with the normal development of the corpus callosum, the part of the brain that connects the two hemispheres and aids in communication between them [3]. This can further impact memory and cognitive function [3].

In conclusion, alcohol consumption during pregnancy can significantly affect an unborn child's memory and cognitive development. It is crucial to avoid alcohol entirely during pregnancy to prevent these potential complications [1].

Sources:
[1] "Fetal Alcohol Spectrum Disorders (FASD)". National Institute on Alcohol Abuse and Alcoholism. <https://www.niaaa.nih.gov/publications/brochures-and-fact-sheets/fetal-alcohol-spectrum-disorders-fasd>
[2] "Prenatal Alcohol Exposure and Memory in Children: A Review". Alcohol Research: Current Reviews. <https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4831791/>
[3] "Prenatal Alcohol Exposure and the Developing Brain". DrugPatentWatch.com. <https://www.drugpatentwatch.com/insights/prenatal-alcohol-exposure-and-the-developing-brain>