Almost never!: It is almost impossible to get pregnant during your period. Starting when your period starts, count 14 days ahead. If you are ovulating normally with a 28-day cycle, then you are most fertile day #14 after your period started. If your cycle is longer or shorter, it can be much more difficult to tell. Talk with your ob/gyn about basal body temperature measurement to find when you are most ferti.
Answered 10/20/2016
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