Crank up the Coffee-Maker
Based on his research, Dr. Shettles says that you're more likely to conceive a boy if your man drinks a strong cup of caffeinated coffee just before intercourse. Why does this work? Shettles says he's not sure—but if anything, it will give your mate a little extra energy boost for the deed!
The jury's not unanimous on whether caffeine for women trying to get pregnant is such a good idea, so you might want to opt for decaf while he goes high-test.