I think that perhaps there may be a little truth to idea that certain positions can help one to get pregnant. For instance in some positions the penetration is deeper thus causing the sperm to be released closer to the cervix which may help the sperm get to the egg faster. But I don't think that there as been any actually medical studies done to prove that some positions can help cause pregnancy over others. The only real suggestion I would make is to have both you and your partner take a multivitamin, don't use any sort of lubricant (except natural lube, i.e. lube) unless you really need it, and (I think the most important thing) just relax and have fun with it. I have seen so many couples (including my own parents) get so stressed out about trying to get pregnant that they don’t until they decide to just give up and then they get pregnant. So yes while you might want to get pregnant, don’t stress over it.