21 days gap is a variation of normal
Next Steps
Maintenance of menstral calendar
Is abnormal irregular periods persists then
1. Get ultrasound pelvis done for uterus tubes and ovaries and endometrial thickness
2.
Thyroid test done empty stomach early morning
Health Tips
Take plenty of water and fruits juice
Take milk with turmeric at night
Take a boiled egg daily
Avoid stress and eat and sleep on time