Ladies help 6weeks pregnant

Sierra

6 weeks 5 days pregnant and I went to the rr last night and saw bright red blood when I wiped. Not a little like spotting but medium to where I needed to wipe twice to clean myself. I've had mild cramps but nothing crazy or severe. My nausea is there I jus don't throw up because nothing comes up. I had a vaginal ultrasound yesterday in the am so my mom says it could be from that but I'm not so sure. Has this happened to any of you????? What should I do???