Progesterone supplement questions

Haleigh

I have had 2 MC due to low progesterone. They started vaginal supplements during my 2nd pregnancy but it was already to late to take them. I only have 1 bottle of progesterone supplements and I don’t know what I should do. My fertile window starts tomorrow and I am hoping to get pregnant as soon as possible. Question is what should I start taking to increase progesterone and when should I start??