The Sims 3 Scripted Objects
MonocoDoll's Menstrual Cycle 1.0.0

The MonocoDoll's Menstrual Cycle Mod aims to provide players with a mechanic that introduces Menstrual Cycle's to sims of the female sex. This provides extra factors that you need to keep in mind. Such as when it is safe to Woohoo to avoid pregnancy, when you are most likely to conceive, being stocked on supplies for bleeding, as well as being lied to by other sims about it being a safe day or them being on birth control (Being lied to is tunable).