Vaccination remains the only means by which we can fight against viral diseases, so we conducted a study on the knowledge, attitudes and practices of pregnant women in relation to vaccination in order to assess the level of knowledge of the population under examination,It is a prospective descriptive cross-sectional study, the sampling is probabilistic, the sample is exhaustive structured on 120 gestating women, the questionnaire and the interview were our techniques of data collection,After investigations, we note that some pregnant women do not know the vaccine, others do not master the vaccination schedule.