Do not worry much as stress is not good for you since you are pregnant. Just take a lot of rest and drink lots of fluid. If your symptoms gets worse, visit your doctor right away.
The blood in your nose might be from too much exertion when you blow your nose so this is nothing to be worried of. Drink lots of liquid and take all the rest you can get. Try not to worry as stress is bad for your pregnancy. And stress can prolong your recovery. There is nothing to be afraid also of the medicine that your doctor gave you since he/she is aware that you are pregnant. You're doctors best interest is for you and your baby.
Should you feel that your condition is getting worse then go see your doctor again or seek a second opinion.
I hope you'll feel better soon.
Hi i would go back to the Doctor and tell him/her what you are going through because your Pregnant he/she will give you the best help they can , Please don't be scared they are there to help you what ever , take care ,