Hello, Thank you for writing to us, Period cycle is depends on your body growth. Normally its five days cycle but sometimes it happens that it takes more time to complete cycle. Still if you are having unprotected sex so i will suggest to check for pregnancy. You should go for Pregnancy check kit which will easily available in market at low cost. You should check without help of anyone and be sure for the same. Just you have to do is taking sample of urine of morning and test it with kit, it will shows you the result whether you are pregnant or not. Still any query than you should concern a good doctor for more help. Hope it will helpful to you. Thanks & Regards, Dr. Gaurav Prajapati