So im 13 weeks prego and its been uneventful. No vomiting no spotting coughing nothing. I get home from work and lay down and I feel something like clem coming up my throat when I spit it out it was a blood clot about a half an inch long. Called my midwife she didn't have a clue went to the er and doctors and nurses were stumped did a chest xray and came back clear... does anybody have any ideas what it could have been???