Yes, you should be worried about FASD. As stated in a recent article by the Alcohol and Drug Foundation, research indicates that up to 50% of Australian pregnancies are unplanned. Accidental prenatal alcohol exposure often occurs before a woman is aware that she is pregnant. Serious harm can occur during these early weeks. If women are sexually active and not using contraception, there is a risk of FASD if they are also drinking alcohol regularly. If you are drinking alcohol and engaging in sexual activity the best solution is to use contraception to prevent pregnancy.