Good evening Doctor, 4 months before my periods was missed. So I consulted a doctor. She had done pregnancy test for me & the test result was negative. That time I was troubled with urinary tract infection also. She preferred medicine for infection & advised me to wait for 1 week for my periods. After 1 week it wasn't came. So I disappointed and consulted doctor again. She given Norethisterone Primolut N 5 mg tablets for 5 days, Dydrogesterone 10 mg for 3 period cycle and Folic acid folicum 5 mg for 3 months. After consumption (5 days) of Norethisterone Primolut my period was came. And I continued consumption of other (Dydrogesterone and folic acid) tablets for 3 months. We had done FSH, LH, Testosterone, Progesterone, Prolactin, TSH, Ultra Sound scan tests and the result shows normal. Up to last month my periods was came as normal. But now my periods was missed again. Now I am totally tensed, what should I do. Please give good advises to me.