The right to a functional sexual and reproductive health includes the right to an adequate prenatal care. The importance of studying the self-rated health cannot be over- emphasized, not least considering that it predicts future morbidity in women after childbirth. Thus, the aim of this study is to examine the sociodemographic factors associating with the self-rated health before, during and after pregnancy in low-risk pregnant women based on population comprehensive register data in Sweden. This retrospective  analysis  of  the  maternal  healthcare  register  (Graviditetsregistret  ©) included data on 167 523 low-risk pregnant women. Tests of normality, group comparisons, and ordinal regression analyses were conducted. The mean age of the studied population was 30.5 years (SD 5.0), and the mean BMI was 24.2 (SD 3.5). Women between the age of 25 and 29 years and primiparas were more likely to rate their  health  higher  than  other  comparative  groups  (OR  between  0.58-0.96  for  all groups). Contrary, women born outside Scandinavia; those with educational level lower than university level; women who were jobseekers, on parent leave, or were students; and  women  with  risky  alcohol  consumption  behaviors,  smoking  and/or  snuffing reported all a lower self-rated health (OR between 1.01-1.89 for all groups). Preventive actions are important and policy makers as well as stake holders should take the main responsibility to develop existing regulations in order to improve the health of pregnant women on a sustainable level, i.e. considering their resources and taking into account possible affecting background factors.