My friend is 37 yr old and got married 3 years before his wife is 29 years old now they want to conceive baby. My friend is having lack of sexual desire and always feeling dull and tired when he came from office. Frequency of sex is 3-4 times in month. He had a very less discharge of semen after long time during sex. He got his semen analysis it is found that sperm count are 2 million par ml. Please advise what to do to conceive baby.