Hello! I took a 2 pregnancy tests on tuesday and it says that i am pregnant..( i have scheduled a dr appt for blood testing this friday) however for the past 2 weeks i have been sick with sinus infection and was prescribed an antibiotic which i took only about 5 days of beause at that time i was feeling better... now the symptoms are back: nasal congestion, sore throat, coughing and now i have lost my voice a little. I have been taking robintussin and dayquil cold and sinus and it doesn t really seem to be working... is it safe to tak Mucinex and should i finish out the antibiotic?