Progesterone shots in pregnancy

So ill be starting my shots I believe next week since I had went into preterm with my daughter at 29 weeks and this is my 3rd child & I was curious on the side effects , I looked up online and seen weight gain & facial hair growth and all .... Girl I was like weight gain noooooooooo 😭 and ill be getting this up until 36 weeks .

y'all Please tell me y'alls after effects or effects while pregnant .