Pregnancy doubt

Patient: Sir, i got married on 2nd february. i have been having sex with my wife only 10th to 15th day of period(around ovalution)because i am in bangalore my wife in theni. i am going to home twice a month. .my wife had periods 3 times after marriage. but 2nd month she did not have period symptoms and also it was delayed 3 days like never before. after that she got period with heavy amount of blood(solid) and she told there was a little white thing like wheat in her pad on is it dispelled after conception?and 3rd month she got period on 25th day like never before.what is the reason for this fluctuating after marriage.please help me sir.