Having sexual intercourse a few days before the wife or female partner expects ovulation to take place will ensure that the longer-living female sperm is ready and waiting to fertilize the ovum just as it is released. The fast moving male sperm will have already perished after just a day or so. It is therefore important to be able to predict when ovulation will take place as ovulation kits will only show a positive result at the time of ovulation. Ovulation kits might be useful for, say, three months prior to when you wish to try conceiving as they will give you an accurate picture of your cycle.
The acidic environment favored by female sperm can be found near to the entrance of the vagina. Therefore it follows that having intercourse in positions which encourage shallower penetration will be favorable for the female sperm because it will thrive better than the male sperm and is more likely to be successful in fertilizing the ovum the instant that it is released.
Other natural ways to conceive a baby girl include watching your diet. It has been shown that women who eat a diet which uses up no more than the recommended calorie allowance each day are slightly more likely to conceive a girl. In addition, eating a diet rich in acidic foods, such as fruits, can help to make the body generally more acidic, which in turn favors the conception of a girl.