Inclusion Criteria:  Nulliparity 37-40 weeks of gestation Singleton pregnancy Vertex presentation Risk-free pregnancy Estimated fetal weight 2500-4000 g In the first stage of birth Amniotic membranes are intact Adequate knowledge of written and spoken Turkish  Exclusion Criteria:  Cesarean delivery need Need for labor induction Need for operative delivery (vacuum, forceps) Need for obstetric analgesia Kristaller maneuver Perineal preparation during pregnancy (perineal massage in the last month of pregnancy, etc.) Vulvo-vaginal infection Vulvar severe varicose veins Postpartum atony Non-compliance with research follow-up criteria Covid-19 positivity Non-compliance with the procedure of the group involved Neuropsychiatric and other diseases that cause understanding, speech, and expression disorders