Progesterone. If your doctor suggested it, thye benefits exceed the small risks.
16 weeks pregnant with blood clot at anterior wall of uterus had bleeding thrice. Now on progesterone 200mg twice for 15 days. What are the risks&solution?
Subchorionic bleed. Sounds like you have a subchorionic or subamniotic hematoma. Most of these will resolve over time. If you are a smoker, have other chronic health issues, it could get larger and cause a placental abrution. Mostly it requires close follow up and I would avoid intercourse until it resolves.