By the time you're an adult, the birds and bees and storks have gone by the wayside, and you know how babies are made. In fact, if you have sex twice a week (without using birth control, of course), you're more than likely to have a bun in the oven before the year is out. But a little knowledge can certainly help the process along. Do you know how to improve your odds of getting pregnant? Take our test and see.