Is 3.2 x 1.6 x 2.3 retroplacental marginal hematoma and 1.2 x 0.6 x 1.9 cm subchorionic hematoma in the fundus big for 14 weeks? is it dangerous?

Monitoring: Subchorionic hematoma are small areas of blood collected behind the placenta. They increase the risk of bleeding and miscarriage slightly. The further along in pregnancy the less the risk of pregnancy loss. Continued monitoring with serial ultrasound is warranted. 3 cm is moderate size but size is relative in these cases as the size does not necessarily correlate with risk.