I am virgin i had my period week early and after 2 2 weeks i am having hard time to poop what's wrong ??

Doubt related: I doubt the early period and constipation are related. There are any life processes that can throw your period off by a week or two. If it is very irregular over the next couple of months, see OB/GYN doc. In interim, keep good diary of when your actual days of flow are and whether heavy, light, etc. For your difficulty having bowel movements, increase BOTH water intake and fiber in your diet.