Hii.. I'm married before 6 month the question is...

Delayed pregnancy?
In fact, there are many reasons that can cause a delay in pregnancy, therefore it's recommended to get a medical examination by an obstetrician and gynecologist to assess your condition. If there is polycystic ovaries, the treatment will be clomiphene citrate, OCP and metformin. If there is a hormonal imbalances such as thyroid disorders the treatment is going to be prescribed accordingly. In other cases such as polyps in the uterus or fibroids. they can be treated surgically.  Futhermore, it's recommended to avoid tension and anxiety as much as you can, have some exercises during the week and to lose some weight.
Please note that your husband should get examined especially his sperms by doing semen analysis.
Diagnosis:
History and physical examination by the obstetrician gynecologist. Complete blood test to detect infections or anemia. Hormonal analysis such as FSH, LH, testosterone, prolctin and TSH test. Pelvic ultrasound to detect polycystic ovaries or Uterine fibers. In addition to making a speculum in some cases to exclude the presence of adhesions in the uterus. Furthermore, semen analysis of the husband's semen.

The possible causes:
1. Stress and anxiety
2. Polycystic ovaries
3. Hormonal imbalances such as high prolactin
4. Early ovarian failure
5. Uterine fibers
6. Infections of the vagina
7. Uterine adhesions
8.Thyroid disorders 
9. Medical issues in the husband such as a varicocele
10. Others

Recommendation:
It's recommended to visit the gyne&obs doctor for further assessment and management.