Hi,
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It is important that you have regular periods if you are trying to get pregnant, as regular menstrual cycles suggest that you are having regular and periodic ovulation. If you have been trying for pregnancy (for more than 6 months) and have not been successful, you should consider getting a complete infertility work-up done for you and your partner to see if there are any underlying causes for the infertility/inability to conceive. There are many factors (ovarian, uterine, hormonal, stress etc) that govern the chances of having a successful pregnancy. Hormonal issues, problems involving ovaries and ovulation, uterine problems, tubal blocks, cervical or vaginal infections, ovarian failure/suppression, endometrial problems, etc., should be ruled out for you. For your partner, semen analysis should be done to rule out infections and to confirm the quality and quantity of sperms produced. Treatment as needed (based on examination and investigations results) would be started to help you get pregnant. Avoid self medication. Consider visiting your gynecologist/obstetrician for further evaluation and assistance and be in regular follow-up and monitoring as instructed. Have diet with foods rich in zinc content to ensure better maturation of egg and sperms. Monitor cervical mucus changes and the BBT (basal body temperature) charting to predict your ovulation and time your intercourse for having fruitful results. Have intercourse in positions that allow for deeper penetration for high deposit of semen. Be in regular monitoring and follow-up with your treating doctor/gynecologist and report any new/abnormal symptoms immediately.
Take care.