is a most potent drug for menorrhagia ,endometriosis
The bleeding was there almost from 14 days stop and reoccurs as tablet stopped.
But what was the reason of bleeding ,till you didn't mention in your query.
This type of bleeding we call as dysfunctional uterine bleeding
( irregular bleeding) and most probable cause may be,
1 Ovarian cyst ( Poly Cystic Ovarian Disease
2 Fibroid in uterus ,
3 Hormonal imbalance.
In my opinion get in ultrasound of genital ( ovaries & uterus) parts.
Also get in blood for estrogen as well estradiol, androgen level.
LH/FSH ratio is also important for evaluation of diagnosis.
Consult a Gynaecologist and get his opinion after these reports.
Alternatively you can upload these reports over this site for diagnostic purposes.