Hi, Welcome to Health care magic forum.
It appears to be the result of anemia
, or infection, these can cause any changes in the periods.
I advise you to consult a gynecologist for diagnosis and treatment to prevent the continuation of the infection.
Take more of green leafy vegetables, pulses, sprouts,and
protein rich foods to have a good health by all means.
Wishing for a quick and complete recovery. Thank you.