weird chunk...? tmi but no tmi pic

Aw

ive had a sinus infection that needs to be addressed by a dr but my love takes the car during the day and is gone until the drs office is closed. Im currently 12 weeks pregnant. I asked my mother if she could take me but shes so against me taking antibiotics while pregnant that she wont.. so im not sure what to do. Im going to go today regardless and ill go to an urgent care if i have to.. (we have a lot of little urgent care clinics around here that are never busy and open after hours) Anyways aside from all the symptoms- i blew my nose and this giant, fleshy chunk came out of my nose. I moved it with the tissue and it seriously looked like a little piece of brain. now i know it wasnt my brain that came out but what in the hell was that? is it part of having an infection?