Reciently i am feeling queezy, i keep urinating and my period has returned. over the weekend i had unprotected sex but i have an iud. any ideas?

Possible UTI: If you are having frequent urination with significant urgency and blood in urine you could have a uti. An std is also possible, if you had unprotected sex (your iud doesn't protect you from stds). See your doctor, they can quickly diagnose and treat a uti. Also you could have them check for an std. Please practice safe sex and use protection.