There really isn't anything you can do. After a single episode of unprotected sex you can get "Plan B" (available without perscription, but often from the pharmacist) to prevent pregnancy. But it is always best to keep your head about you and paln and protect your self (from preganancy and sexually transmitted disease).

Am unmarried but had sex wit my love now m not in periods dnt knw what to do but i want to get periods as we are not planning for babies

 

You may visit a doctor who are specialist in this. Please don't use any contraceptive pill to avoid such case you may get a side effects. You may visit www.callpills.com hope this helps.