Thanks for the query.
You once consult gynecologist and get examined.
Go for blood investigations like complete blood picture to rule out the possibilities like anemia
, coagulation problems etc.
If doctor recommends you can go for one ultrasound
to rule out any structural causes like uterine fibroids etc.
Depending on the examination findings you can take treatment.
For more details you can ask me through: http://www.healthcaremagic.com/doctors/dr-sree-gouri-sr/63429