Hi thanks for contacting HCM.. You have less sperm that is azospermia .... But it is mild not severe .... Conception can occur if sperms having normal morphology and motility ...... Are you taking any hypertensive drugs ??antidepressant drugs ??? As they can lead testicular dysfunction.. Investigate with thyroid profile ..... If you are using marijuana , coccaine , anabolic steroid then it can occur ... Smoking and alcohol should be avoided.... If you had mumps orchitis after puberty then it can occur .... If bronchitis , sinusitis or any unusual symptoms develop repeatedly genetic cause for gene mutation searched by PCR testing for cystic fibrosis and kartagener syndrome . You can take hey fort or maxoza L after consulting doc... Sidenafil that you are using can be taken ... Avoid stress...... If you can t conceive still assisted reproductive technology can be used. You can consult psychiatrist or sexologist ... Take care