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If you are having symptoms suggestive of PCOS, and if your previous investigations have confirmed presence of pituitary adenoma, along with hyperprolactinemia, then further evaluation should be done to see if the irregularity of periods are caused by the PCOS and pituitary adenoma affecting other hormonal levels and ovarian function. Consider visiting your doctor/gynecologist or take a second opinion from another gynecologist for the condition. Go ahead with further evaluation to look at the current status of the problem. PCOS usually responds to treatment with insulin modifiers as most common cause for PCOS is insulin resistance. Consider discussing with your treating doctor/gynecologist about getting started on these along with hormonal contraceptives for better control of PCOS and for regularization of periods.
Even with PCOS you can have occasional ovulation, and pregnancy can result if you are sexually active around ovulation time. No birth control measure gives you 100%protection, hence use of two or more combined methods give you better protection. If you are worried about pregnancy (chances of condom/contraceptive failure), always use back-up protection while having intercourse for additional protection from pregnancy. Visit your doctor/gynecologist for further clarification and assistance.
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