Blood in uterus? Week 9

Rebecca

Today I got to see my little love on the ultrasound. Supposed to be 9+0 but showed 8+3 with a heartbeat🥰. Though doctor said there was a dark spot with fluid in my uterus, that probably was a small bleeding. Is this normal? Anyone else had this on their scan? He said everything looked fine and normal but I should check again in a few weeks. I’m just a little worried.. I’ve had no heavy cramps nor bleedings.