Having little ones running around doesn't equate to a permanent dry spell for most couples. In fact, more than half of the millennial moms surveyed have sex multiple times a week. The survey found that overall, 19 percent of moms surveyed said they had sex more than three times per week, while 29 percent of the women said they do it two or three times per week. Additionally, 25.7 percent of millennial moms said they have sex once a week. Only 13 percent of the women admitted they were down to once a month, and another 13 percent said they had sex less than once a month.