I'm twelve weeks pregnant. Recently, after an ultrasound, my doctor told me that I had a uterus blood clot right below my fetus and was given medication named Duphaston with one week HL. He didn't give me any further information, but told me to avoid carry heavy things and intercourse. My next appt with him is 4 weeks later. I went Google and suspect I might be suffering from subchorionic hemorrhage. Should I be worried?