earliest positive and progesterone ttc

Jordan

My husband and I have one son and two babies born in heaven. I am on progesterone to hopefully prevent another loss. My period is due next Sunday but I am just praying our rainbow will be conceived and she won't arrive. My last miscarriage was in June this year. My question is, what is the earliest you have found out you were pregnant and also, who has had progesterone and did it seem to work? Thanks in advance ladies, this is my first post.