There is no 'average'. PCOS can cause a woman to have problems ovulating consistently. That can happen one month but not the next or it can happen multiple months in a row. If you are asking because you think you or whomever are pregnant...the only way to know is to take a pregnancy test.
Everyone is different. I had ireggular periods..after one year I miscarried..then lucky to get pregnant a few months later. My daughter is now one..and I'm almost twenty weeks pregnant with second baby. I'm not sure what you're trying to ask but everyone with PCOS differs. If you think you're pregnant..do a test..if you're struggling to get pregnant see a doctor :) good luck
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