Small SCH

Okay so I had an ultrasound on 17 May then immediately after had a follow up with my OB. Then yesterday I get the results on my app and it says I have a small SCH (subchorionic hematoma). I’m a little annoyed and pissed that my doc never mentioned this to me. I know that most dissolve on their own but it does increase the changes of miscarriage to 1-3%. I know that’s not a large percentage. But I feel like I definitely should have been told. I feel like he has a responsibility to tell me even minor issues and educate me properly. Even if it’s between the uterus and placenta (which is less concerning), I think I should have been informed. All he said to me was to contact him immediately if I am bleeding which was right after he told me I was O neg/Rh neg (which I knew). Am I overreacting?