The rapid advancement of technology greatly impact the development of human life, one of impact is health. Pregnancy is a special moment and heavy sacrifice for a mother. During pregnancy a mother sometimes has a health problems. The problem of pregnancy is very influential for fetus growth, therefore a pregnant mother should be maintained and cared for as best as possible. However, not all pregnant women can maintain good a pregnancy, because of certain factors such as the cost of consultation with an expert who is quite expensive, and the effectiveness of unfavorable time. Therefore, we need a technology that can assist and facilitate in maintaining pregnancy to pregnant women. One of technology that can be used in health especially pregnancy health is expert system which can be moved a expert knowledge into a computer application so that making it easier and faster to give diagnosis pregnancy disorder to pregnant women. One method of expert system that can be used to diagnose pregnancy disorders are forward chaining method, which is a search technique that begins with the fact of the symptoms experienced were then matched with the rules to get the new facts form the diagnosis. With a forward chaining method, has produced an application that helps pregnant women and midwives diagnosing pregnancy disorders easily and quickly. So, a kind of disorder experienced by pregnant women can be quickly identified and treatment of pregnancy disorders can be done immediately.