Spotting

Hi everyone... I'm about 6 weeks now... I noticed some spotting for almost two weeks now. I did an ultrasound and everything looked ok. This is my first pregnancy and can't help but google everything that's going on with my body. I read up and saw a lot of people say spotting in the first trimester is normal due to uterus cleaning out old blood (that's why blood is more often brown than red) and also because of implantation... Look at my ultrasound.... What do you ladies think?