Thank you for your query.
firstly there is a simple way to know if you are pregnant.
Take a home urine pregnancy test first thing in the morning tomorrow.
If not pregnant, please consult an infertility
Investigate yourself for ovulation disturbances and delayed periods.
Rule out PCOS in your case.
Have complete basic hormonal profile done, your partner's semen analysis
done and your fallopian tube
Maintain a healthy BMI, a positive outlook and take regular folic acid