Peanut found that 52 percent of mamas had sex as soon as their docs gave them the green light, and nearly 38 percent of moms had sex within three months of having a baby. With that being said, almost 62 percent of women said they were nervous about their first time postpartum. Although new moms don't have nearly as much sex once their kiddos are born, that doesn't necessarily mean the shop's closed for good.