Hello Don t be in panic , flu is common viral disease and self controlling . As you mentioned that you are also having flu as well ovulation and above all trying to get pregnant . So need not to worry , you are taking natural cough i.e. a safe remedy . While if fever is there or generalized body pain due to flu , both of you can take paracetamol 10 mg / kg body weight , whenever require . Tylenol ( paracetamol ) is a safe drug not only for you but also for your forthcoming baby . But if fever persists 10 days then consult a physician and get his opinion. Good luck.