Hello, I went through your query, it is not possible to come to any conclusion with this brief description of the problem. Irregular periods maybe due to hormonal imbalance, reproductive tract infections, anemia,
Thyroid problems, etc.. And some of them lead to infertility,, since you are trying for baby from 1 and half year,, both husband and wife should undergo some tests to check for the cause,,,. Please consult a infertility centre.... For further workup.