there is only one position ( lassic or ideal ) i which u should do. and first of all u nned to know when u ovulate so buy ovulation predictor kit. u can get over the counter.then do it when u ovulate. or one week everyotherday.
I have read that if do "doggy style" the sperm can get to the egg faster but its all about timing do you know when your ovulating get an ovulation kit