It seems every person has their own magic “trick” for getting pregnant—whether it’s eating a certain meal, using a particular sexual position, or waiting until your thermometer clicks up just a few degrees (a sign of ovulation). These fertility myths won’t help you get pregnant—though it’s likely everyone knows someone who has done one of these and actually ended up with a bundle of joy nine months later. 

Boxers Are Better Than Briefs

The idea here is that briefs, which hug the man tighter, increase the temperature of the scrotum, thus decreasing sperm production. However, studies that have looked at this have been unable to offer a definitive answer; so don’t base your underwear choices on this fertility myth.

Raise the Woman’s Bottom After Orgasm

In terms of gravity, this idea makes sense: tip the woman’s hips so that sperm runs toward the uterus and fallopian tubes. Unfortunately, your acrobatics may be for naught—sperm cells travel chemically, not gravitationally, so there’s no need to encourage movement.

Stress Makes You Infertile

Increased stress will not render you infertile—but it may delay ovulation. Once the egg and the sperm are in the same body, however, a woman’s stress level has no bearing on if she will get pregnant. So don’t stress about your stress—unless it’s so bad it affects your work performance, personal relationships, or ability to perform daily tasks. Then you should see a doctor.

Timing is the Most Important Part of Conception

No two women have the same cycle—the average cycle is 28 days from start to finish, but they can be as short as 21 or as long as 35—so counting days based on a generic timeline may leave you with more questions than answers. Instead, work with your doctor to closely monitor your own ovulation signs, and build a timeline from that.

Have as Much Sex as Possible

While it’s important you increase your frequency of sex to up your odds of getting pregnant, having too much sex too often may actually decrease a man’s fertility. It is true the testes can generate fresh sperm easily, but having sex too frequently may mean the concentration of sperm in semen is lower than normal. Sex once a day or every other day during ovulation is adequate for getting pregnant, especially since sperm can live for a day or two in the woman’s body, and an egg can be fertilized for up to 24 hours after ovulation.