The fourth trimester has been defined as the first 12 weeks postpartum. During this time, women are recovering from childbirth, experiencing changing hormone levels, and learning how to feed and care for their newborns, all while dealing with considerable challenges, such as lack of sleep, fatigue, pain, breastfeeding difficulties, stress, new onset or exacerbation of mental health disorders, lack of sexual desire, and urinary incontinence, to name a few. #postpartum #trimester #pregnancy