Think you know how to make a baby?  Think again.  Some surprising new research shows that most women don't really know the first thing about how it's done.

Ask any woman who has ever tried to conceive a baby and she will tell you that the world is full of advice.  From sexual positions, to timing, to diet - books, the Internet, and social circles are filled with tricks and tips for how to get it done.  But how much of that advice is really based on science?

Not much.

According to a new study published in the journal Fertility and Sterility, researchers found that the vast majority of women aged 18 to 40 had no clue how to get pregnant.  For instance, more than one-third of women thought that elevating the pelvis or using certain sexual positions could boost a woman's chance of conception.  Only 10 percent of women knew that the best time to have sex in order to conceive is actually right before ovulation - not after.  And contrary to what many of the women thought, frequent sex is also not a good idea for women trying to conceive as the more often a man ejaculates, the lower his sperm count will be.

For the study, researchers from the Yale University School of Medicine sent an online survey to about 1000 women of various races, ethnic groups, and socio-economic levels.  They found that most of the women in the study had big gaps of knowledge in how to make a baby.  And these gaps were consistent regardless of a woman's education level or economic status.

Aside from the actual "mechanics" of baby-making, the study also found that many women did not realize that the best time to start taking folic acid is one month before conception in order to prevent birth defects.  Nor did they understand that obesity, smoking, irregular periods, and sexually transmitted diseases could significantly decrease a woman's fertility.

Want to know the straight scoop about how to make a baby?  Researchers suggest that you skip the internet forums and old wives' tales and talk to your health care provider for advice.

Related posts on MNN:

Most women don't know how to get pregnant, study finds
Researchers find that most women are clueless about when and even how to make a baby.