Ginger Tea is really good for settling an upset stomach or sickness - as well as Ginger Biscuits (anything Ginger really!) Honey is good for the sore throat.
Dont try or take anything without consulting your doctor first he will know the best treatment for you,you sounds like you need acourse of antibiotics and the doctor will know which one is the safest whilst you are pregnant,hope you feel better soon
You can gargle with warm salt water for your throat. A few drops of warm sweet oil (olive oil) in your ears can help them. You may want to try LifeSavers for your throat. I used the peppermint ones for nausea (still do even though I'm not pregnant). They might work for your cough and throat but the fruit ones may do a better job with that since they are more like cough drops than the peppermint ones. Hope you feel better soon.