im 13 weeks pregnant and been coughing up blood and brown mucas for 5 weeks, ive had blood test (d-dimer) to test for blood clot on lung, came back negative, an ecg showed i had a fibre block in my heart but nothing much to worry about, i have taken 3 loads of anti-biotics, none of which have worked, doc could hear a crackle on lungs but now they are clear, yesterday i had a camera down my nose into my throat, doctor couldnt find nothin and said its more likley coming from my lungs, so has referred me urgently to see a lung specialist who will put a camera into my lungs, but this morning has coughed up even more bright red fresh blood about the size of my palm, has any1 else had this and if so what was it..im worried!! i was a smoker, quit when i became pregnant, smoked for about 6 years. im only 20