Hi,
You are recently married. I think sexual anxiety is common cause of problem in your case. Anxiety about partner's satisfaction, anxiety, stress, fatigue will cause problem. I would suggest to
consult urologist and undergo complete health check up, routine blood tests like CBC. blood sugar, serum
testosterone, USG pelvis if needed.
If all tests will come normal then you need psychiatric consultation and sex
counselling. Meanwhile you can take following advises: Spend more time in foreplay before sex and even during intercourse do foreplay.
Avoid stress and be relax while having sex, make environment romantic, you can see pron before sex for sexual arousal, Avoid stress when you feels tired and low. Do regular exercise like kegel's pelvic exercise, walking, running followed by yoga for 45-60 minutes in morning. Avoid excessive alcohol, smoking, fatty, oily food.If problem persists then drugs like
tetrafol plus,
sildenafil and paroxentine after compete evaluation will help you.
Hope this may help you. Contact further if follow up needed.
Best regards,
Dr. Sagar