The urge to go frequently is a common side effect of pregnancy, but for most moms, restroom visits dwindle after delivery. Dutch researchers found that as early as the 12th week of pregnancy, pressure from the growing uterus, an increase in urine production and changing capacity caused an overactive bladder in nearly half the women they studied. By the 36th week, nearly 15 percent also noticed urine leakage. But by three months postpartum, nearly 90 percent reported no bladder issues, and only 3.5 percent had leakage.
Despite how foreign they can look on your body, stretch marks (or striae) are a normal part of pregnancy: Half of all moms-to-be can expect to find these rippled stripes on their skin.
What's the cause?
"Stretch marks are an odd entity," says dermatologist Alan Rosenbach, M.D., a clinical assistant professor at Keck School of Medicine, University of Southern California in Los Angeles. "Considering how common they are, we don't know much about their cause, though some suspect the reasons are at least partly hormonal."