Its true that studies show that the added progesterone
has no rule in the 2 nd and 3rd trimester. IT may be given in the 1st trimester but once 12/14 weeks are crossed there is not much else it can do. However,you need to speak with your doctor as to why it was prescribed to you. Its not known to cause any added adverse effect on h fetus but at the same time its not known to have any use in late pregnancy
either. Have a discussion with your doctor about why it was given to you.