Subchorionic Hematoma & Utrogestan: Understanding Risks & Treatment

Question
Age: 31 years old, one 15 month old child, 26th February.

I had some spotting 10 days ago and the sonogram showed that I developed a subchorionic hematoma. My doctor suggested bedrest, Utrogestan pills (micronized progesteron 3 * 100 mg / day) and Pregnyl injections every four days. He said that there are no risks for the fetus associated with Utrogestan since I am not going to take these pills for a long period of time. Is this really the case? Should I be taking these pills although they should be avoided in the first trimester of pregnancy?
Thanks in advance  

Answer
A subchorionic hematoma is merely a sequestration of some blood with the folds of the developing placenta. It usually does not cause any difficulties with the fetus and dissipates on its own within a few weeks. You do not have to be on bedrest or take any medication. However, bedrest may make you feel a bit more comfortable if you are bleeding. Progesterone therapy sometimes will lower the risks of spontaneous miscarriage, but the subchorionic hematoma does not increase the risks.