Мама двоих (1 год, 2 года), ждёт третьего

Subchorionic Hematoma (SCH)

Do any of you ladies have this? Or ever had one in a previous pregnancy? I was diagnosed with one last week. It's 1.4x1.2cm. I started bleeding/spotting last week and have an appointment tomorrow. When did yours go away? How long did you bleed for? I've never experienced this in pregnancy before.