My period is due the start of sept, my husband and i are trying for a baby, can we try the doggie style position, when is the best time to start tryin?

Before mid-cycle: It depends on the start of the last period and cycle length. Ovulation is often about 14 days after the start of the last period (varies depending on cycle length). Starting before mid-cycle, for over a whole week, have sex twice a day. During this time, one should not think about ovulation, pregnancy, babies, etc.., but just enjoy life and check a pregnancy test if the next period is 1 week late.