It's difficult for anyone to tell you over the Internet what is going on. I understand you don't have insurance so going to a ob/gyn can be expensive. You need to see where planned parenthood is available in your area so you can get a check-up. If you are pregnant you shouldn't be bleeding. Some women bleed very lightly when their uterus is stretching but this sounds a little strange. Maybe your period may just be late? Also, I'm not sure how the scratchy throat can be related. I would advise you to call planned parenthood and find out how you can get an exam. Also, I don't know if you want to get examined this way but if you go to a state or county hospital and tell them you are bleeding and possibly pregnant they will examine you for free. A state or county hospital cannot turn you away if you don't have insurance. Many people don't know that but at this time you might want to take that into consideration. I hope you feel better soon!