being operated surgically ,yet have periods 3 monthly, difficulty in conceiving.
Mostly after drilling surgery, ovulation is recovered.
The cycle,though irregular,but is with ovulation makes one capable to conceive.
The uterogestan ,helps implantation
of fertilized ovum.
You can take for 4-6 months .
In case there is no +ve result till then,please get reinvestigated,get your endocrinal assay done & consult an Endocrinologist