Spotting

I am 7 weeks & 2 days. Ive already had 2 ultrasounds done bc first time i was bleeding it was red but doctor said everything looked fine. Second one i was about 6 weeks & 1 day and baby had a heart beat. But dr told me i had a blood clot in my utreus but could mean nothing. Every since my ultrasound Ive been wiping brown they said it could be from the ultrasound. But its been going on for over a week now. I have no cramping or ne thing. Any one else relate?