Feel like I'm annoying my dr's office!

I'm 9 weeks pregnant and I'm going on 3 weeks of coughing non stop. I've taken every allergy medicine and robitussin and cough drops and nothing is working. I've called my dr.'s office 3 times in the past 3 weeks and they keep telling me to take allergy meds and robitussin because I'm pregnant so unless I start running a fever, they won't prescribe me anything. 
Well last night I started feeling pretty crappy with all the drainage and my throat was hurting really bad...I ran to the bathroom and threw up mucus drainage and blood chunks! I knew it was blood because I tasted blood really bad. And after I coughed, I spit up some more. 
Anyone else have this problem!?