Thanks for your query.
I will try my best to provide you with best possible professional recommendations to your questions.
Ovigyn-d contains a hormone HCG and it is given for induction of ovulation if eggs are not being released and Susten
is a hormone Progesterone
It has various uses and is given in case of pregnancy
for sustaining the pregnancy if there is a risk of miscarriage
or due to hormonal
Both the drugs are safe to use but they would have been prescribed after evaluation by your treating doctor if there is any risk factor or if there is history of miscarriage or if the hormonal levels are low.
Yet again, I do hope that you have found something helpful and I will be glad to answer any further query.