Volume 2, Number 1 (March 2022) e-ISSN: 2798-5067 p-ISSN: 2798-5059 © KHD Production | 24 Factors Related to Prevention Behavior of COVID-19 Transmission among Pregnant Women Mila Oktaviani 1 , Rini Kundaryanti 2 , Shinta Novelia 3* 1,2,3 Department of Midwifery, Faculty of Health Science Universitas Nasional; shinta.novelia@civitas.unas.ac.id (Corresponding Author) Article Info: ABSTRACT Submitted: 01-09-2021 Revised: 29-03-2022 Accepted: 29-03-2022 Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) is a new virus that can cause lung disease and death. Pregnant women are one of the vulnerable groups exposed to coronavirus, pregnant women have a higher risk of contracting severe disease, morbidity and mortality compared to the general population. The research design used was Cross Sectional. The population used was all pregnant women in trimesters 1-3 which consisted of 100 people in July-August 2021.The variables of this study were knowledge, attitudes, sources of information, the role of health workers and the behavior of preventing the transmission of COVID-19 in pregnant women. The research instrument used in the study was a questionnaire. The data analysis used is univariate analysis and bivariate analysis. The results showed that out of 100 respondents, 55 (55.0%) respondents had good knowledge, 57 (57.0%), 65 (65.0%) respondents used electronic sources of information, and 55 (55.0%) respondents had good preventive behavior. and 45 (45.0%) respondents had poor preventive behavior. There was a relationship between knowledge (p-value 0.000 OR 3.682), attitudes (p-value 0.000 OR 5.308), and sources of information (p-value 0.002 OR 4.460) with the behavior of preventing the transmission of COVID-19 in pregnant women. This results can be used as a reference to improve mindset and knowledge and make additional knowledge during a pandemic. Health care provider need to educate pregnant women regarding prevention behavior of COVID-19 behavior. Keywords: Behavior, transmission of Covid-19, pregnant women INTRODUCTION The Novel Coronavirus Disease 2019 (COVID-19) infection has spread since 2019, the World Health Organization (WHO) reported that this virus was first discovered in Wuhan (Qiao, 2020). All parts of the world are now reporting the number of people who are positively infected with Covid-19, including in Indonesia (Novelia, Usman, & Pamungkas, 2021). Covid-19 cases in Indonesia are still increasing and cannot be controlled as well as in positive cases, recovering and dying. Positive Covid-19 cases have reached 1.6 million positive cases, 1.53 million recovered and 45,652 cases died. Covid-19 cases in West Java reached 344,568 positive cases, 311,203 recovered and 4609 died. Andrea, 2020). Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) is a new virus that can cause lung disease and death. The disease is more common in the elderly and in individuals with cardiologic, respiratory, renal, and metabolic comorbidities. SARS-CoV-2 infection may increase the risk of pneumonia in pregnant women compared to non-pregnant women (Budiarti, 2020) Pregnant women are one of the vulnerable groups exposed to coronavirus, pregnant women have a higher risk of contracting severe disease, morbidity and mortality compared to the general population. Physiological and immunological changes that occur as a normal component of pregnancy can have systemic effects that increase the risk of obstetric complications from respiratory infections in pregnant women. Side effects on the fetus in the form of preterm delivery have also been reported in pregnant women with Covid-19 infection. During the pandemic, there were significant changes in health services, especially for pregnant women The principles of preventing the transmission of coronavirus in pregnant women include universal precautions by always washing hands with soap for 20 seconds or hand sanitizer, using personal protective equipment (cloth masks),