question: hai doc ,we are trying for a baby around 6 months,but  i am not pregnant.my menstruation is not in time. on october  i did nt get my period (oct 23 is my date),i think  i am pregnent, but test is negative,doctor gave medicine(restrogen) to get my period..then i get my period on dec 16,( onlysmall bleeding on this time not like period ).i am very confused becoz why i am not pregnent..we have daily sex..