Hello, I have used Ipill after the intercourse...

will be there any risks on your pregnancy in case of failure of after morning pills ?
there wont be any risk in this case , as after morning pills was meant to make hormonal changes that prevent fertilized ovum from continue its way to uterus and become pregnancy , and that hormonal change didnt effect it , so it wont effect your pregnancy , but if you take it now again , its will risk it , so for that such a medication and any other OCP medications is prohibited to use after pregnancy confirmed 
General advice 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