Hi...., you can follow safe period method.... Ovulation approximately occurs in the middle of the cycle... A week before and a week after the approximate day of ovulation is considered to be Fertile period, also.known as the danger period.... The days apart from this is called the safe periods, where the fertilization does not takes place.....And I think you can practice this till then you are planning to have child.... I sincerely hope this information is useful to you people .... Regards,