You've made the decision. You've weighed the options, looked at your life, and decided there was something missing. Something small, adorable, and completely yours. 
You're ready to have a baby. 
But hold on there, mama-to-be. There are some things you need to know—things you need to understand—before you throw caution (and your contraceptives) to the wind and nookie like there's no tomorrow. Time for a little brush up on how your body works, and help you keep your sanity as you try for that little bundle of joy.