Thanks for the query.
The possibilities are :
imbalance leading to amenorrhea
-Asherman's syndrome leading to adhesions in the uterus due to D&C etc.
So you once consult gynecologist, get examined and go for ultrasound
and hormonal profile.
Hormonal profile should include estrogen
, LH, FSH, thyroid profile etc.
By this workup the possible cause for your problem can be identified and treated.