10 Myths About Pregnancy

Truth: While evidence suggests that having a vaginal birth after cesarean (VBAC) is slightly riskier than a repeat C-section, a VBAC is a reasonable option for many women, says Brasner. Just discuss the pros and cons with your doctor before you hit the delivery room.

 

10 Myths About Pregnancy 

hink you've got the whole birds-and-bees thing figured out? Turns out, much of what we know about baby-making is based on old wives' tales instead of scientific research, according to the just-released book, Expecting Better: Why the Conventional Pregnancy Wisdom Is Wrong — and What You Really Need to Know. Prepare to have your mind blown.

Myth: Pregnancy Lasts Nine Months

Truth: In reality, the length of your pregnancy can vary by as much as five weeks, according to a 2013 study published in the journal Human Reproduction. When you deliver ultimately depends on your age, your weight, how much you weighed at birth, and a slew of other factors.

Myth: Sex while you're pregnant can hurt the baby.

Truth: In almost all cases, sex shouldn't affect your little one, says Shari Brasner, M.D. assistant clinical professor of obstetrics, gynecology, and reproductive science at Mount Sinai School of Medicine in New York City and a member of the Women's Health expert advisory board. There are some exceptions, though: If your placenta is positioned between your cervix and vagina or if you're at a high risk for a preterm birth, ask your doctor before doing the deed.

Myth: You can't have a natural birth after you've had a C-section.

 Truth: "The baby's sex has absolutely nothing to do with the way a woman appears," says Brasner. So sorry—you can't tell the baby's gender just by looking at mom.