Missed Period And Trying For Pregnancy

Patient: I got married on 07th December from very beginning we trying to start family but there is no result up to now my wife’s period late by 10-13 days twice after marriage, before her period was never late even by single day… we visit doctor She recommended prolifen capsule for my wife.now i have some question.1- Does Size matter, my Penis size is 3 inch ?2- Is this necessary that me and my wife get discharge at same time for pregnancy ?Please reply me as soon as possibleThanks & Best RegardsAbid Manzoor ChouhanLahore Pakistan