Can TB Medications Used In TB Treatment Regulate Periods?

hi, doc, may i know does TB affects periods???i have irregular periods from last 2-3 years, i consultd a doc, she told me that i have TB, i took course for TB for approx 8 months, till then my periods were regular, now when i have left TB medicine, irregular periods are still there,i consulted another doc,(as i couldnt consult previous doc, as i have relocated), she said that TB doesnt affect periods, but how come i could get regular periods when i ws taking TB medicine...plzzz..suggest,,,m worried..