I took medicine to avoid my period time near my marriage date of February. Then after 5 days, i.e on february 13 I attended my period. Then after a week I stated mating with my husband. Then on March 13 I didn't attend my period. Thought that I gonna attend pregnancy but unfortunately I attend my period on March 29. What is the reason for such delay period? Whether because of medicine I took or something? And also tell me when can I start to mate with my husband to attain pregnancy from the information provided above. please help me. I am not not aware of when to have sex and how many days in a week to attain pregnancy.