I had tonsillitis last year when I was breastfeeding and found I couldn't take anything at all from the pharmacy, apart from paracetamol!!! And it is purely because medication hasn't been tested on pregnant and breastfeeding woman, not because it has been proven the drugs are harmful. So I would imagine it's the same if you're pregnant. (Unfortunately I don't know what the doctor can give you as I came down with it on a Friday afternoon and went all weekend feeling absolutely terrible - then quite a bit better by the time I could go to the doctors on the Monday so didn't bother!)