Treadmill is absolutley fine. You can do all exercises your body is used to till the pregnancy gets confirmed.
Jaggery powder is fine in mild amounts.
Eat plenty of vegetables and fruits daily.
Take high protein diet
Avoid sweets, junk and oily foods.
Exercise daily for an hour .
Next Steps
take prenatal supplements that is folic acid.
Health Tips
be positive and optimistic. all the best.