Finally, A Video Explaining Why Mamas Get Nothing Done Some people believe that certain sex positions can increase their chances of conceiving a baby. actually help the sperm move toward the fallopian tubes, in order to fertilise your egg. Can Sex Positions Help Us To Conceive A Boy Or Girl?. Watch the video It is true that the missionary position is one of the best sex positions if you want to get pregnant on her back, thus allowing the semen to enter the uterus and the fallopian tubes much easier. Hi im 33 i have my first baby boy when i was he is now 4 year and i want to concieve again. Guide: caranyamembuat.com You and your spouse have been trying really hard but it seems like you can't get the right sex position.