I got my periods on 25-29 sept. Then got intimate with my partner on 1oct. Took ipill on 2nd oct. I got my withdrawal bleeding just like periods on 11 oct. Then I got my 1st period after withdrawal bleeding on 12 nov. My 2nd period after withdrawal bleeding was due on 17 dec but today is 11 Jan it hasn't come yet. I took urine
pregnancy test on 3 Jan it was negative. Then again I took on 9 Jan it was negative.
Why my periods are so late? When will they come? Is there any serious problem?