Do Sex Positions Matter?
Q: Do certain sex positions help my chances of conceiving?
A: Common sense says that deep penetration (through positions like rear-entry and missionary) will dispense sperm closer to the cervix, helping the little swimmers reach their goal, but there's no evidence to back up the theory. Regardless of how you get down to business, sperm are present in the cervical canal just seconds after ejaculation, according to Optimizing natural fertility, a committee opinion by the Practice Committee of American Society for Reproductive Medicine in collaboration with the Society for Reproductive Endocrinology and Infertility. That means your favorite position is the best one for conceiving, says Shari Brasner, M.D., ob-gyn at New York City's Mount Sinai Hospital. "There is no rationale for sex to be uncomfortable or awkward."
Q: Can oral sex as foreplay hurt our chances of conceiving?
A: Not to be a foreplay killer, but saliva can be a sperm killer. It can interfere with your cervical mucus, alter the pH in your vaginal tract (making it inhospitable to sperm), and even take out stalwart swimmers, according to Optimizing natural fertility. If clitoral stimulation helps get you in the mood, ask your man to reach for fertility-safe lubricant and put his fingers to work instead. Being face-to-face--and mouth-to-mouth--during the act might even be more intimate.
Q: Is hot tub sex a bad idea when trying to conceive?
A: Yes. Hot tubs are typically factory programmed at 104?. At that temp (some like it hotter!) it takes only 10 to 20 minutes to raise the temperature of your body, his body, and his testicles to 102? or higher, according to the American Pregnancy Association. And his boys don't like getting any warmer than 96? if they can help it. Not only can sperm cells sizzle in the heat, the production of them can temporarily screech to a halt--decreasing his sperm count for days.