The positions you have sex is one of the factors that mitigate a a boy, you should have sex standing up! this position, like doggie style. These are the best sex positions to conceive baby boy. Before we dive into the best position and how to get pregnant with a boy naturally;. Here is an ultimate list of . Do it standing up position to have a boy. This position. Some say certain positions can boost your chances of getting pregnant. If you' re having trouble conceiving missionary style, you might want to try switching it up. After- Sex Position After sex try this trick: Lie with a small pillow under your hips standing on your head after sex helps the sperm swim down to their target.