Hiii...

when can you confirm your pregnancy ?
you can do blood pregnancy test to confirm pregnancy now 
- as well we , its advised to visit doctor on the sixth week of last period date , to do US imaging test 
General advices during pregnancy : 
1. See your doctor regularly to check on your health and your pregnancy 
2. Get enough rest
3. exercise regularly
4. avoid smoking and alcohol
5. Avoid taking any medications without consulting the doctor
General advice regarding nutrition during pregnancy?
1. eat healthy foods constantly
2. Eat more vegetables and fruits and avoid fatty and oily food 
3. Avoid fast foods and processed food 
4. Drink enough water