Hello ma'am, i had delivered on 20 june and my periods ended on 17th july....since then periods have not come....is it normal? or should i eat something for periods?

You should avoid drinking during your periods. Your body is fatigued and already experiencing a lot. If you drink, the chances for a heavier flow increases and will make you more uncomfortable and uneasy. So, try to avoid it.

you had periods right after your delivery? what was the date after delivery when your period started?

Some common side-effects of emergency contraceptive pills are dizziness, nausea, fatigue or headaches, tenderness of the breasts, changes in menses, among others.