Hi i had what i think was implantation bleeding a week ago. Exactly 7 days after having unprotected sex while ovulating. It was a very light flow similar to menstruation but pink and brown in color. I have been having food aversions, vivid dreams, upset stomach and very loose stools daily. I took a pregnancy test on tuesday morning and it was negative. Is there still a chance I could be pregnant? My boobs are not sore and I m having no morning sickness although sometimes I wake up starving and sometimes I wake up feeling grossed out by the thought of food. Thanks so much!