 In the present study, the investigators aim to evaluate the potential of oral probiotics, containing Lactobacillus strains, to eradicate and reduce the vaginal colonization with group B Streptococcus GBS during pregnancy. This could help to prevent neonatal morbidity and mortality by reducing the risk for neonatal sepsis, pneumonia, and meningitis, known as early-onset or late-onset GBS infection. 