I love this question, and I hear it all the time from my patients. And the answer - amazingly enough - is yes. There are some things that you can do to increase the likelihood that you’ll have a boy baby. First, you must eat lots and lots of broccoli. Just kidding. That’s an old wives tale. The recommendations will increase your chances, but only by about 20%. There is a book you might consider,
How to Choose the Sex of Your Baby by Dr. Landrum Shettles, that goes into great detail about how to have a boy or a girl.
To increase the chances of having a boy, try to time intercourse to be as close to ovulation as possible. Try not to have intercourse any sooner than 24 hours prior to ovulation and no later than 12 hours after.
To increase your chances of having a girl, try to time intercourse for 3 or more days before ovulation. Remember - sperm can live for 5 days. Good luck!