Thanks for the query.
To regularize the periods you have to take the hormonal
pills at-least for three months.
So you once consult gynecologist, get examined to rule out the possibility of vaginal infection
as you are having milky white discharge.
After that with her advice you can use hormonal pills.
You have to decrease your weight and have to maintain the ideal weight for the height which is essential in regularizing the hormonal levels.
For more details you can ask me through: http://www.healthcaremagic.com/doctors/dr-sree-gouri-sr/63429