The relationship between concurrent use of cultural health practices and Western medicine during pregnancy by women of Mexican origin is relatively unstudied. The aim of this study was to explore how cultural health practices are balanced with the use of Western medicine during pregnancy by women of Mexican origin across differing acculturation levels. A convenience sample of 15 women of self-identified Mexican origin between the ages of 18-65 participated either in a telephone interview or one of two small group interviews; each was conducted in participants' preferred language. Transcripts were analyzed using thematic coding, and acculturation level was assessed using a validated measure. The results indicate that (1) Women of all acculturation levels valued Western medical care in pregnancy and had a good understanding of common public health messages; (2) Perceived benefits of and reasons for engaging in cultural health practices varied by acculturation level; and (3) Motivation for sharing cultural health practices with children also varied by acculturation level. Consequently, acculturation level is an important factor to consider in culturally competent genetic counseling, including eliciting cultural information relevant to counseling and decision-making and identifying barriers to effective, culturally sensitive communication.