Hi thanks for your question.
You had two miscarriages. Now you’re trying to conceive third time and fear you may again land into abortion
You want to take progesterone
presuming that you’re having low progesterone.
Yes low progesterone is a cause of abortion in early pregnancy
. But you have to establish low progesterone as a cause of your recurrent abortion before taking progesterone.
Yes progesterone has side effects but in recurrent abortion, benefits are more than side effects
Get yourself investigated for low progesterone. Or other causes of abortion, before going for any treatment.
Hope I answered your question