do ur semen test ASAP

If both husband and wife are healthy and try intercourse at least 2-3 times a week, the chance of pregnancy in one month is only 15%, that is out of 100 couples 15 can conceive after one month. The chance is 60%, 80% and 90% after 6, 12 and 24 months respectively. Therefore please try for 6 months at last. Meanwhile check blood for Thalassemia, Rubella and start folic acid. All the best.