Thanks for your query. As you can already see, the pregnancy
is lagging behind by 3 weeks.
This either means a slowly growing pregnancy, or a late conception due to late ovulation.
Also, a retro chorionic ( RC ) bleed, means bleeding in the supportive tissues of the uterus
, that support the growing pregnancy, and in future form the placental tissue.
This is a bad sign, because if the bleeding increases or persists, it might lead to an abortion.
Hence the terminology employed is a threatened abortion
Moreover, sometimes, with proper pregnancy support, in the form of progesterone
supplementation, strict rest and avoidance of stress/coital activity / strain, the bleed might stop and resolve, leading to continuation of a normal pregnancy.
Please continue having serial visits with your obstetrician as indicated, and serial ultrasounds to know the status of the retro chorionic bleed.
Be positive, and all the best.