Good evening...
No need to worry about it .. it is normal to have scanty periods if everything is fine.
-If ur over weight , reduce a minimum of 3-4 kgs and hormonal balances , ur flow becomes normal.
( eat healthy, do exercise daily for half n hour morning and evening).
Next Steps
Get
Thyroid test , CBP( Anemia can also can have reduced blood flow), Usg pelvis scan . If u have scanty periods in further cycles too get these investigations and see . If all the reports are normal no need to worry at all.
Health Tips
Stay stress free. Which plays a crucial role in hormonal imbalance. Stay safe .