Eating Yams will increase your odds

There's no scientific proof that yams will help you get pregnant. Varro Tyler, professor emeritus of pharmacognosy (the study of drugs from natural sources) at Purdue University, and the author of The Honest Herbal thinks that claims of yams contributing to conception are all scams. "I call them the yam scams. The only possible positive outcome could be due to the placebo effect," he says. And as far as any negative or harmful effects are concerned, there seems to be only one: "The most deleterious effect is to the pocketbook."

It doesn't matter what type of underwear HE wears

Boxers are less constricting than briefs, and that's good news for testicles (those sperm-producing machines in every man's pants). For optimum functioning, testicles should stay a couple of degrees below normal body temperature. Boxers allow them to hang loose, away from the body — and keep their cool. For the same reason, men who are trying to make a baby should also avoid hot tubs, saunas, and tight jeans or pants.

Man on top is best

There's no evidence that any particular sexual position is more likely to lead to conception. You may have heard that positions that deposit the sperm closest to the cervix — such as the missionary position (man on top) — are more promising than other positions. But there are no studies to back this up.

Stand on your head

There's no evidence that it makes a difference, but it can't hurt. Even remaining horizontal for 15 minutes or so after intercourse allows more semen to remain in your vagina. Of course, with millions of sperm in every ejaculation, there should be plenty of sperm in your vagina even if you get up right away.