Progesterone 200 mg

I have just found out I'm expecting after trying for 19 months!! Eeekkk overly excited. ..I was wondering if any of women have taken progesterone the first 12 weeks?! I'm only 5 weeks today!! I have to do it vaginally each nite for 12 weeks! If anyone has done so did yoi miscarriage? ! I pray this helps me from not..I would be broken ; (