Please help :( feeling ill

I think I've picked up something and I'm currently TTC and testing on 30th but believe in my heart I may be pregnant. I had a chemical pregnancy last month and I'm scared to do anything wrong this time so scared to take meds ? I have a cough and irritated throat which seems to be irritating my right ear too. My throat is getting a bit sore from coughing and ive had it a few days it appears to be getting a bit worse ? can someone please offer me remedies which may help and are safe during pregnancy? The reason why I'm waiting to test is I'm currently not at home with my SO so promised to wait. Thanks a lot in advance