We have been married for 3.5 years, had a mutually satisfying sex till our son was born. Ever since his birth, my wife's libido has gone down. Unfortunately we lost him at 14 months of age, that was in June this year. Now she is pregnant again as both of us wanted a child. The problem is that all this has left me high and dry, which is very frustrating and is leading to constant arguements and fights. I don't want to lose my marriage as I love her very much. HELP.