I have been off the pill for 5 months now and I have had no chance in falling pregnant. I am not to sure what the problem is.

It can take months and months for your body to readjust and for you to become pregnant. If you are concerned, consult with your Physician.

Is there anything I have to eat in particular for my body to be balanced so that I can become pregnant.

I am not aware of ANY foods that make it easier to become pregnant.

How long do you think I should wait until I shall go and see the doctor

It takes the average healthy couple up to a year of actively trying before finding out they have conceived. Since you are trying to conceive, I would recommend you start taking some prenatal vitamins and treat your body as though you are already pregnant. No smoking, drinking or drugs, eat healthy and get plenty of rest.