Having a cold while pregnant.

So I'm 9 weeks and 4 days pregnant. About a week and a half ago I started getting a cold. I went to ER for fever and symptoms. They said I had an upper respiratory infection. A few days later I developed strep throat. I have been coughing really bad for a week. I have tried drinking water with lemon juice and honey. I have also tried tea with honey and lemon. Nothing seems to be helping. My cough is waking me up throughout the night. It also has made my chest and throat hurt super bad. Does anyone have any safe remedies to help my cough? Any help would be greatly appreciated!! Thanks in advance!!