Hi, M 31 Yr Female Married Since 2years In These

Hi, m 31 yr female married since 2years in these past two years i have not concieved yet for a single time the first one year was ok in concern to intimacy between us during the passage of time i am going disintersted in sex even i tried to make interest in many ways like i use to read books and watch movies to get knowledge, tried differnt position during intimate bt despite of all that i couldnot find any interesting thing or never got pleasure(orgasm) from day one that i ofently gets while sleeping without doing anything with him..can u help to know why all that happens when there is no problem in our married life