Fertigyn is basically HCG injections.
It is given in cases of recurrent aborters or high risk pregnancy
in order to minimize risk of abortion
. It is the hormone that supports pregnancy, till the placenta takes over after 12 - 14 weeks. If you have a history of PCOD, its given as you might have luteal phase defect.
Proluton is depot progesterone
, also given in habitual aborters, or pregnancy at high risk of miscarriage
, also in patients with history of PCOD to support the pregnancy adequately.
is a must for every conception, as it is vital for the baby's neural tube development.
Susten is also a form of progesterone, used either orally or vaginally.
Your gynecologist must have found some strong risk factors in your history or examination, as you are receiving two forms of progesterone - injectable as well as oral/vaginal.
Am sure she would be able to counsel and justify it to you better.
All the best.