<p><em>H</em><em>e</em><em>a</em><em>lt</em><em>h is one of the important factors for pregnant women in conducting daily activities. However, some pregnant women do not care about their body condition so there are many &nbsp;complaints, &nbsp;causing &nbsp;a &nbsp;disease &nbsp;in&nbsp; pregnant &nbsp;women. &nbsp;Pregnant &nbsp;women &nbsp;can&nbsp; be &nbsp;affected &nbsp;by pregnancy, the disease can be known from the symptoms it causes, but to know precisely what diseases suffered by pregnant women, requiring an expert or specialist doctor Content. In this study designed a system&nbsp; of experts based on the website &nbsp;using a&nbsp; rule &nbsp;base &nbsp;with &nbsp;the &nbsp;method of forward &nbsp;chaining inference aimed at helping pregnant mothers in diagnosing early pregnancy disease. This expert system is able to diagnose the disease suffered by the pregnant mothers according to the question of the symptoms asked to be answered by the pregnant women, so that the system will provide diagnostic results, details on diseases and treatment The disease.</em></p>